[scr] documented doc scripts

scripts/cmake/DocumentationProjectFile.cmake

scripts/cmake/DocumentationSetup.cmake

scripts/doc/append-xml-tags.py

scripts/doc/check-project-params.py

scripts/doc/create-docu-file-stubs.sh

scripts/doc/generate-project-file-doc-qa.sh

scripts/doc/get-project-params.sh

scripts/doc/get-undocumented-project-params.py

scripts/doc/normalize-param-cache.py

scripts/doc/print-xml-tags.py