Cmake-infrastructure for tests and CI-setup for Levante

MR to prepare CMake-scripting and CI setup for unittests

CMakeLists.txt

@@ -54,4 +54,4 @@ install(
     "${PROJECT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
   DESTINATION
     "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}/cmake"
-)
\ No newline at end of file
+)