* CI-unixish.yml: handle precompiled headers with `ccache`
* actually support `ccache` in CMake < 3.17
* CI-unixish-docker.yml: split CMake build and test execution into separate steps
* findDependencies.cmake: only print message about macthcompiler being disabled when it is actually used
* CI-unixish-docker.yml: added missing `ccache` CMake options
* iwyu.yml: use debian:unstable to always get latest include-what-you-use
* cleaned up includes based on include-what-you-use
* mitigated include-what-you-use false positives
* cleaned up triage.pro and pass all triage files to selfcheck
* CI-unixish.yml: factored out redundant selfcheck flags
* CI-unixish.yml: cleaned up selfcheck suppressions and fixed warnings
* added explicit `missingInclude` checks to selfcheck to work around current issues/limitations / fixed selfcheck includes / added some unit tests for `missingInclude`
* applied the selfcheck changes to the sanitizer jobs
* only fail TSAN CI build in case of TSAN error / updated sanitizer CI build TODOs
* lib/CMakeLists.txt: removed unnecessary external include
* look up tinyxml2 include dir when using system one and specify it
* lib/CMakeLists.txt: do not treat bundled headers as system ones
* CI-unixish.yml: actually perform system tinyxml2 build on macos
* modernized some CMake invocations
* CI-unixish.yml: use `ccache` for Linux gcc CMake builds
* CI-unixish-docker.yml: use `ccache` for Linux gcc CMake builds
* CI-unixish-docker.yml: enabled CMake build with tests for more images
* CI-unixish-docker.yml: adjusted some step checks
* coverage.yml: avoid duplicated test execution
* coverage.yml: split test execution and report generation into separate steps
* coverage.yml: split software and Python package installation into separate steps
* coverage.yml: removed unnecessary `libcppunit-dev` installation - library headers are only needed when performing syntax checking
* CI-unixish-docker.yml: perform make and CMake builds in parallel
* CI-unixish-docker.yml: cleanups
* CI-unixish-docker.yml: only install necessary packages
* donate_cpu_lib.py: use `os.path.join()`
* donate-cpu: removed remaining usage of `os.chdir()`
* donate_cpu_lib.py: moved library includes code into class
* donate_cpu_lib.py: pre-compile library include regular expressions
* donate_cpu_lib.py: pre-compile some more regular expressions
* donate_cpu_lib.py: small unpack_package() cleanup and optimization
* donate_cpu_lib.py: added some information about the extracted files to unpack_package()
* donate_cpu_lib.py: bumped version
* added test_donate_cpu_lib.py
* donate_cpu_lib.py: greatly improved `LibraryIncludes.get_libraries()` performance
only scan each file once for previously undetected libraries only
* test_donate_cpu_lib.py: fix for Python 3.5
* scriptcheck.yml: added `-v` to pytest calls so we get the complete diff on assertions
* fixed `test_arguments_regression()` Python tests with additional pytest arguments
* donate_cpu_lib.py: use `subprocess.check_call()`
* test_donate_cpu_lib.py: sort results to address differences in order with Python 3.5
pygments 2.12.0 changed the signature of the HtmlFormatter.wrap()
method. As we don't actually care about the arguments to wrap we can
use packing/unpacking to maintain compatability with older versions of
pygments.