[meta,cmake] Restructure project and introduce CMake tooling

Rearrange project to conform to current best-practices in modern C++ repo organization.

Introduce initial configuration file for the CMake meta-build system, based on the restructured organization.

CMakeLists.txt

@@ -25,6 +25,7 @@ set(Boost_USE_MULTITHREADED ON)
 
 if (Boost_FOUND AND TBB_FOUND AND CURL_FOUND)
     add_executable(${SCDAQ_TARGET} ${SOURCE_FILES})
+    set_target_properties(${SCDAQ_TARGET}  PROPERTIES LINKER_LANGUAGE CXX)
     target_include_directories(${SCDAQ_TARGET} PRIVATE ${Boost_INCLUDE_DIRS} ${CURL_INCLUDE_DIR} ${TBB_INCLUDE_DIRS})
     target_link_libraries(${SCDAQ_TARGET} PRIVATE ${Boost_LIBRARIES} ${CURL_LIBRARIES} ${TBB_LIBRARIES})
     target_compile_definitions(${SCDAQ_TARGET} PRIVATE $<$<CONFIG:Debug>: ${SCDAQ_TARGET}_DEBUG=1 >)