CMake Interaction Update

.gitignore

docs/source/api/generation.rst

docs/source/usage/generator_scripts.md

docs/source/usage/project_integration.md

src/pystencilssfg/cmake/FindPystencilsSfg.cmake

src/pystencilssfg/cmake/modules/PystencilsSfg.cmake

src/pystencilssfg/config.py

tests/integration/cmake_project/CMakeLists.txt

tests/integration/cmake_project/CliTest.py

tests/integration/cmake_project/CustomDirTest.py

tests/integration/cmake_project/TestApp.cpp

tests/integration/test_cmake.py