Merge branch 'master' into 'master'

create-visual-studio-solution-python38.sh

create-visual-studio-solution-python39.sh

docs/coordinates.rst

docs/helpers.rst

docs/idabot.rst

docs/unit.rst

python-api-src/lib_base_location.cpp

python-api-src/lib_building_placer.cpp

python-api-src/lib_map_tools.cpp

python-api-src/lib_point.cpp

python-api-src/lib_unit.cpp

python-api-src/lib_unittype.cpp

python-api-src/library.cpp

src/BaseLocation.cpp

src/BaseLocation.h

src/BaseLocationManager.cpp

src/BaseLocationManager.h

src/BuildingPlacer.cpp

src/BuildingPlacer.h

src/IDABot.cpp