Merge topic 'doc-3.8-relnotes'

Help/release/3.8.rst

Help/release/dev/CUDA-language-support.rst

Help/release/dev/ExternalData-multiple-hashes.rst

Help/release/dev/ExternalProject-GIT_CONFIG.rst

Help/release/dev/FeatureSummary_enhancement.rst

Help/release/dev/FindOpenGL-imported-targets.rst

Help/release/dev/QtAutogen_Contain.rst

Help/release/dev/QtAutogen_Skip.rst

Help/release/dev/SOURCE_DATE_EPOCH.rst

Help/release/dev/SublimeText-no-VERBOSE.rst

Help/release/dev/UseSWIG-SWIG_OUTFILE_DIR.rst

Help/release/dev/WCDH_allow_unsupported.rst

Help/release/dev/add-BUILD_RPATH.rst

Help/release/dev/add-LANG_CPPLINT.rst

Help/release/dev/add-SHA-3.rst

Help/release/dev/allow-fallback-config-mapping.rst

Help/release/dev/capture-clang-tidy-errors.rst

Help/release/dev/cdash_upload_retry.rst

Help/release/dev/codeblocks-nmake-makefiles-jom.rst

...ease/dev/codelite-build-and-clean-targets-enhancement.rst