[VOL-2899] Added loglevel listpackage command to voltctl for
displaying list of configured log packages.

Also added support for auto-complete of component name

Change-Id: I8c3dedd2f62eeed3da6e37de2e070683795ed8c2
diff --git a/pkg/config/configmanager.go b/pkg/config/configmanager.go
index 724ad32..0dafc7a 100644
--- a/pkg/config/configmanager.go
+++ b/pkg/config/configmanager.go
@@ -36,11 +36,12 @@
 
 const (
 	ConfigTypeLogLevel ConfigType = iota
+	ConfigTypeMetadata
 	ConfigTypeKafka
 )
 
 func (c ConfigType) String() string {
-	return [...]string{"loglevel", "kafka"}[c]
+	return [...]string{"loglevel", "metadata", "kafka"}[c]
 }
 
 // ChangeEvent represents the event recieved from watch