- Renaming drill to arrow for TestBaseAllocator
- Fix ArrowBuffer as ArrowBuf
- Replace Drill with Arrow for ValueHolder

This closes #2.

https://issues.apache.org/jira/browse/ARROW-3965

This creates an object which configures the BaseAllocator and Calendar used during to configure the translation from a JDBC ResultSet to an Arrow vector.

Author: Mike Pigott <mpigott@gmail.com>
Author: Michael Pigott <mikepigott@users.noreply.github.com>

Closes apache#3133 from mikepigott/jdbc-to-arrow-config and squashes the following commits:

be95426 <Mike Pigott> ARROW-3965: JDBC-To-Arrow Config Builder javadocs.
d6c64a7 <Mike Pigott> ARROW-3965: JdbcToArrowConfigBuilder
d7ca982 <Mike Pigott> Merge branch 'master' into jdbc-to-arrow-config
789c8c8 <Michael Pigott> Merge pull request #4 from apache/master
e5b19ee <Michael Pigott> Merge pull request #3 from apache/master
3b17c29 <Michael Pigott> Merge pull request #2 from apache/master
5b1b364 <Mike Pigott> Merge branch 'master' into jdbc-to-arrow-config
881c6c8 <Michael Pigott> Merge pull request #1 from apache/master
bb3165b <Mike Pigott> Updating the function calls to use the JdbcToArrowConfig versions.
68c91e7 <Mike Pigott> Modifying the jdbcToArrowSchema and jdbcToArrowVectors methods to receive JdbcToArrowConfig objects.
8d6cf00 <Mike Pigott> Documentation for public static VectorSchemaRoot sqlToArrow(Connection connection, String query, JdbcToArrowConfig config)
4f1260c <Mike Pigott> Adding documentation for public static VectorSchemaRoot sqlToArrow(ResultSet resultSet, JdbcToArrowConfig config)
df632e3 <Mike Pigott> Updating the SQL tests to include JdbcToArrowConfig versions.
b270044 <Mike Pigott> Updated validaton & documentation, and unit tests for the new JdbcToArrowConfig.
da77cbe <Mike Pigott> Creating a configuration class for the JDBC-to-Arrow converter.

https://issues.apache.org/jira/browse/ARROW-3923

Hello!  I was reading through the JDBC source code and I noticed that a java.util.Calendar was required for creating an Arrow Schema and Arrow Vectors from a JDBC ResultSet, when none is required.

This change makes the Calendar optional.

Unit Tests:
The existing SureFire plugin configuration uses a UTC calendar for the database, which is the default Calendar in the existing code.  Likewise, no changes to the unit tests are required to provide adequate coverage for the change.

Author: Michael Pigott <mikepigott@users.noreply.github.com>
Author: Mike Pigott <mpigott@gmail.com>

Closes apache#3066 from mikepigott/jdbc-timestamp-no-calendar and squashes the following commits:

4d95da0 <Mike Pigott> ARROW-3923: Supporting a null Calendar in the config, and reverting the breaking change.
cd9a230 <Mike Pigott> Merge branch 'master' into jdbc-timestamp-no-calendar
509a1cc <Michael Pigott> Merge pull request #5 from apache/master
789c8c8 <Michael Pigott> Merge pull request #4 from apache/master
e5b19ee <Michael Pigott> Merge pull request #3 from apache/master
3b17c29 <Michael Pigott> Merge pull request #2 from apache/master
881c6c8 <Michael Pigott> Merge pull request #1 from apache/master
089cff4 <Mike Pigott> Format fixes
a58a4a5 <Mike Pigott> Fixing calendar usage.
e12832a <Mike Pigott> Allowing for timestamps without a time zone.

https://issues.apache.org/jira/browse/ARROW-3966

This change includes apache#3133, and supports a new configuration item called "Include Metadata."  If true, metadata from the JDBC ResultSetMetaData object is pulled along to the Schema Field Metadata.  For now, this includes:
* Catalog Name
* Table Name
* Column Name
* Column Type Name

Author: Mike Pigott <mpigott@gmail.com>
Author: Michael Pigott <mikepigott@users.noreply.github.com>

Closes apache#3134 from mikepigott/jdbc-column-metadata and squashes the following commits:

02f2f34 <Mike Pigott> ARROW-3966: Picking up lost change to support null calendars.
7049c36 <Mike Pigott> Merge branch 'master' into jdbc-column-metadata
e9a9b2b <Michael Pigott> Merge pull request #6 from apache/master
65741a9 <Mike Pigott> ARROW-3966: Code review feedback
cc6cc88 <Mike Pigott> ARROW-3966: Using a 1:N loop instead of a 0:N-1 loop for fewer index offsets in code.
cfb2ba6 <Mike Pigott> ARROW-3966: Using a helper method for building a UTC calendar with root locale.
2928513 <Mike Pigott> ARROW-3966: Moving the metadata flag assignment into the builder.
69022c2 <Mike Pigott> ARROW-3966: Fixing merge.
4a6de86 <Mike Pigott> Merge branch 'master' into jdbc-column-metadata
509a1cc <Michael Pigott> Merge pull request #5 from apache/master
789c8c8 <Michael Pigott> Merge pull request #4 from apache/master
e5b19ee <Michael Pigott> Merge pull request #3 from apache/master
3b17c29 <Michael Pigott> Merge pull request #2 from apache/master
d847ebc <Mike Pigott> Fixing file location
1ceac9e <Mike Pigott> Merge branch 'master' into jdbc-column-metadata
881c6c8 <Michael Pigott> Merge pull request #1 from apache/master
03091a8 <Mike Pigott> Unit tests for including result set metadata.
72d64cc <Mike Pigott> Affirming the field metadata is empty when the configuration excludes field metadata.
7b4527c <Mike Pigott> Test for the include-metadata flag in the configuration.
7e9ce37 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata
bb3165b <Mike Pigott> Updating the function calls to use the JdbcToArrowConfig versions.
a6fb1be <Mike Pigott> Fixing function call
5bfd6a2 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata
68c91e7 <Mike Pigott> Modifying the jdbcToArrowSchema and jdbcToArrowVectors methods to receive JdbcToArrowConfig objects.
b5b0cb1 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata
8d6cf00 <Mike Pigott> Documentation for public static VectorSchemaRoot sqlToArrow(Connection connection, String query, JdbcToArrowConfig config)
4f1260c <Mike Pigott> Adding documentation for public static VectorSchemaRoot sqlToArrow(ResultSet resultSet, JdbcToArrowConfig config)
e34a9e7 <Mike Pigott> Fixing formatting.
fe097c8 <Mike Pigott> Merge branch 'jdbc-to-arrow-config' into jdbc-column-metadata
df632e3 <Mike Pigott> Updating the SQL tests to include JdbcToArrowConfig versions.
b270044 <Mike Pigott> Updated validaton & documentation, and unit tests for the new JdbcToArrowConfig.
da77cbe <Mike Pigott> Creating a configuration class for the JDBC-to-Arrow converter.
a78c770 <Mike Pigott> Updating Javadocs.
523387f <Mike Pigott> Updating the API to support an optional 'includeMetadata' field.
5af1b5b <Mike Pigott> Separating out the field-type creation from the field creation.