Use-case is explained in the documentation. This implementation
takes care that the additional libs actually occur at the end
of the linker line despite the use of imported targets with
INTERFACE_LINK_LIBRARIES. It might still not be perfect but
sufficient for current use-cases.
When adding source files to the _FILES variables conditionally
those are so far not being formatted or translated. Adding
these files at least to the EXCLUDED_FILES will fix this.
Replaces DOC_ONLY_FILES which served the same purpose but was
limited to documentation.
* Prevent warnings about required tools being unavailable
when tidy/coverage targets aren't desired anyways (eg.
when packaging)
* Do not automatically execute tidy check when packaging
in unclean environment
* Append Git revision and ID of latest commit
to version displayed via --help
* Can be turned off via option
* Has no effect if the source dir is not
a Git checkout or Git is not installed
* Implements
https://github.com/Martchus/tageditor/issues/13
