Previously, the cursors used in various places where define in the CURSOR enum, so their values wasn't configurable.
The cursors can now be configurable using global configuration objects or directly in the classes where they are used.

BREAKING CHANGES: the `constants.CURSOR` enum has been removed. The values are now configurable and have been moved to:
  - `ConnectionHandler`
  - `EdgeHandlerConfig`
  - `HandleConfig`
  - `VertexHandlerConfig`

tbouffard deleted the feat/378_configurable_cursors branch

This was referenced