Proposed Changes

The python wrapper instantiates drivers directly. To ensure that SU2 is initialized properly, also if used from python, some initialization code is already placed in the driver constructor. This PR moves additional initialization code to the driver constructor.

Related Work

This came up during #1903.

PR Checklist

• I am submitting my contribution to the develop branch.
• My contribution generates no new compiler warnings (try with --warnlevel=3 when using meson).
• My contribution is commented and consistent with SU2 style (https://su2code.github.io/docs_v7/Style-Guide/).
• I have added a test case that demonstrates my contribution, if necessary.
• I have updated appropriate documentation (Tutorials, Docs Page, config_template.cpp), if necessary.