Add test for hddsource, move sources to own library

sources/extsysmonsources/CMakeLists.txt

@@ -0,0 +1,18 @@
+set(SUBPROJECT ${PROJECT_MONITORSOURCES})
+message(STATUS "Subproject ${SUBPROJECT}")
+add_definitions(-DTRANSLATION_DOMAIN=\"plasma_applet_org.kde.plasma.awesomewidget\")
+
+include_directories(
+        ${CMAKE_SOURCE_DIR}
+        ${CMAKE_BINARY_DIR}
+        ${CMAKE_CURRENT_SOURCE_DIR}/../${PROJECT_LIBRARY}/
+        ${PROJECT_TRDPARTY_DIR}
+        ${Qt_INCLUDE}
+        ${Kf5_INCLUDE}
+)
+
+file(GLOB SUBPROJECT_SOURCE *.cpp)
+file(GLOB SUBPROJECT_HEADER *.h)
+
+add_library(${SUBPROJECT} STATIC ${SUBPROJECT_SOURCE} ${SUBPROJECT_HEADER})
+target_link_libraries(${SUBPROJECT} ${PROJECT_LIBRARY} ${Qt_LIBRARIES} ${Kf5_LIBRARIES})