Added SceneItemComponent registry (unfinished)

CMakeLists.txt

@@ -20,6 +20,7 @@ project(Dawn
 set(DAWN_ROOT_DIR "${CMAKE_SOURCE_DIR}")
 set(DAWN_BUILD_DIR "${CMAKE_BINARY_DIR}")
 set(DAWN_TOOLS_DIR "${DAWN_ROOT_DIR}/tools")
+set(DAWN_SOURCES_DIR "${DAWN_ROOT_DIR}/src")
 set(DAWN_ASSETS_SOURCE_DIR "${DAWN_ROOT_DIR}/assets")
 set(DAWN_ASSETS_BUILD_DIR "${DAWN_BUILD_DIR}/assets")
 set(DAWN_GENERATED_DIR "${DAWN_BUILD_DIR}/generated")