slight restructure of CMakeLists

apps/template/CMakeLists.txt

@@ -15,8 +15,7 @@ set(SOURCE_FILES
         game.c
 )
 
-add_executable(${PROJECT_NAME} ${SOURCE_FILES})
-use_townengine(${PROJECT_NAME})
+use_townengine(${PROJECT_NAME} "${SOURCE_FILES}")
 
 set_target_properties(${PROJECT_NAME} PROPERTIES
         RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}