ARI: bridges/{bridgeID}/addChannel: add roles parameter

Roles are now cleared with each entry into a bridge with addChannel.
If the roles parameter is present, the role specified will be applied
to all channels being added with the addChannel command.

(closes issue ASTERISK-21973)
Reported by: Matt Jordan
https://reviewboard.asterisk.org/r/2691/


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@396182 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_ari_bridges.c

@@ -324,6 +324,9 @@ static void ast_ari_add_channel_to_bridge_cb(
 				args.channel[j] = (vals[j]);
 			}
 		} else
+		if (strcmp(i->name, "role") == 0) {
+			args.role = (i->value);
+		} else
 		{}
 	}
 	for (i = path_vars; i; i = i->next) {