add common to store reusable classes abstract classes etc

Author: tikikun

CMakeLists.txt

@@ -76,6 +76,7 @@ else()
 endif()
 
 aux_source_directory(controllers CTL_SRC)
+aux_source_directory(common COMMON_SRC)
 # aux_source_directory(filters FILTER_SRC) aux_source_directory(plugins
 # PLUGIN_SRC) aux_source_directory(models MODEL_SRC)
 
@@ -86,7 +87,7 @@ aux_source_directory(controllers CTL_SRC)
 
 target_include_directories(${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
 # ${CMAKE_CURRENT_SOURCE_DIR}/models)
-target_sources(${PROJECT_NAME} PRIVATE ${CTL_SRC})
+target_sources(${PROJECT_NAME} PRIVATE ${CTL_SRC} ${COMMON_SRC})
 # ${FILTER_SRC} ${PLUGIN_SRC} ${MODEL_SRC})
 # ##############################################################################
 # uncomment the following line for dynamically loading views set_property(TARGET