forked from Kistler-Group/sdbus-cpp
* Change default test installation path to tests/sdbus-c++ , while also respecting CMAKE_INSTALL_PREFIX * Introduce INSTALL_TESTS CMake option, so BUILD_TESTS is now split into BUILD_TESTS just for building and INSTALL_TESTS for installing the test binaries Per discussion in #358 (comment), the change in the default settings is fine a for a minor release.