CMAKE: implemented method to disable a module via cmake

use -DDISABLED_AC_MODULES or config.cmake file to define it

CMakeLists.txt

@@ -116,6 +116,13 @@ endif()
 # add modules and dependencies
 CU_SUBDIRLIST(sub_DIRS  "${CMAKE_SOURCE_DIR}/modules" FALSE FALSE)
 FOREACH(subdir ${sub_DIRS})
+
+    get_filename_component(MODULENAME ${subdir} NAME)
+
+    if (";${DISABLED_AC_MODULES};" MATCHES ";${MODULENAME};")
+       continue()
+    endif()
+
     STRING(REGEX REPLACE "^${CMAKE_SOURCE_DIR}/" "" subdir_rel ${subdir})
     if(EXISTS "${subdir}/CMakeLists.txt")
         message("Loading module: ${subdir_rel}")