Create uni command in BBSimctl
Clean up UNI command and add filtering to UNI services

Change-Id: I1a54d786ca71a602c0ca0113f030c6caa1bc9cc7
diff --git a/cmd/bbsimctl/bbsimctl.go b/cmd/bbsimctl/bbsimctl.go
index 293c164..9d1ed93 100644
--- a/cmd/bbsimctl/bbsimctl.go
+++ b/cmd/bbsimctl/bbsimctl.go
@@ -38,6 +38,7 @@
 	commands.RegisterConfigCommands(parser)
 	commands.RegisterOltCommands(parser)
 	commands.RegisterONUCommands(parser)
+	commands.RegisterUNICommands(parser)
 	commands.RegisterServiceCommands(parser)
 	commands.RegisterPonCommands(parser)
 	commands.RegisterCompletionCommands(parser)