Add module support level to ast_module_info structure. Print it in CLI "module show" .

ASTERISK-23919 #close
Reported by Malcolm Davenport

Review: https://reviewboard.asterisk.org/r/3802



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419592 65c4cc65-6c06-0410-ace0-fbb531ad65f3

codecs/codec_adpcm.c

@@ -355,6 +355,7 @@ static int load_module(void)
 }
 
 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Adaptive Differential PCM Coder/Decoder",
+		.support_level = AST_MODULE_SUPPORT_CORE,
 		.load = load_module,
 		.unload = unload_module,
 	       );