CONFIG: Added a CMakeLists.txt to install header-only library.
CONFIG: Added a CMakeLists.txt to install header-only library.

daminetreg/lib-cpp-pre,daminetreg/lib-cpp-pre,daminetreg/lib-cpp-pre,daminetreg/lib-cpp-pre,daminetreg/lib-cpp-swissarmyknife,daminetreg/lib-cpp-pre