* project-template: use lib install dir defined by GNUInstallDirs

this should fix library search problems on Tumbleweed
project-template installs cmake-config files to library destination
note, individual projects also need to be changed, for installation of actual libs

This provides ChimeraTK::<project-name> as cmake imported target.
Variables <project_name>_INCLUDE_DIRS, <project_name>LIBRARY_DIRS, <project_name>_LIBRARIES, <project_name>_CXX_FLAGS, <project_name>_LINKER_FLAGS are provided for compatibility but are generated from cmake-exports where possible and cmake imported targets should be preferred.

* provide function for option array conversion
to be used with target_compile_options etc + FindPackage results, where
findPackage results are of incorrect/old format

* FindDOOCS:
 - DOOCS components as imported targets
 - clean up no longer needed tweaks
 - add timinglib as component
 - make use of log levels and respect QUIET argument

* add_dependency: fail on wrong add_dependency usage
this was unseen since it worked in most cases but in general does not
in particular was causing trouble with imports from cppext
second arg must be version number

* pkgconfig exports
 - generated from cmake-exports
 - make linker flags come before libs, order is required e.g. for --no-as-needed flag
 - remove duplicates in output

* FindGccAtomic
- do not put absolute lib path in output since it was causing trouble with yocto builds. Should be in system lib
paths anyway. Also, make GccAtomic variable output name more consistent.

This allows easier debugging as all lines can be reached. The tsan build uses
"-o1" for performance reasons.
For asan and Debug build we use "-o0", which includes this flag, and for the
release builds we want as much optimisation we can get.

The upcoming version of the config generator script package will need
more files to be copied into the build directory. This change simply
copies all files and does not rely on a particular structure.

in order to allow that documentation includes images

Copyright by some files in ApplicationCore is owned by HZDR.

ApplicationCore was hitting the limit...

There are a couple of files in the CMakeFiles folder that will match the
search patterns. This is problematic during package build, since debian
builds in a subfolder of the source folder, so we hit those files and
tests fail

Enable by adding
  include(cmake/enable_code_style_check.cmake)
to the project's CMakeLists.txt

 - Remove Makefile.coverage.in
 - Drop BUILD_COVERAGE_ON_DEBUG for ENABLE_COVERAGE_REPORT (defaults to
    on if included)
 - Add clean-gcda target

this is required for dcmctrl7 config

This fixes issues when using LaTeX in doxygen

Previous attempt to work around the tine linking issue did not work.

This is a work around for not finding libtinemt at runtime. The DOOCS serverlib is lacking the RPATH, hence its dependencies are not found. If clientlib is linked first, tine is already linked.

Search explicitly for libgul14 which is required by DOOCS libraries

If a header-only library requires linking a 3rd party library, the ..._LIBRARIES variable could not be used in depending projects, because it
contained NOTFOUND.

Removed libtine linking workaround from FindDOOCS. Doocs libraries now are themselves linked correctly against tine.

Automatically adding CMAKE_CXX_STANDARD to all projects is giving too much trouble because different CMAKE versions add different --std=gnu... flags which do not play well the the --std=c++... which we use.

This reverts commit ddb4d575.

This confused git massively

The pkg-config file is missing so we have to search for the library
manually