Show OpenMW version and Lua API revision in documentation
Changes:
- Store Lua API revision in CMakeLists.txt together with OpenMW version (implements #6149 (closed)).
- Show OpenMW version and Lua API revision in documentation.
- Store version info in binary rather than in resources (it is ridiculous that OpenMW can print version of another OpenMW install if user messed up the configs).
Docs: https://ptmikheev-openmw.readthedocs.io/en/latest/reference/lua-scripting/index.html
Edited by Petr Mikheev
