webui: initial support for leddevice options (#232)

* initial support for leddevice options

* fix schema and editor init

* fix led editor labels and schema

* add some led schemas

* led config: insert current values. not yet perfect, but it works

libsrc/leddevice/schemas/schema-udpraw.json

@@ -2,6 +2,15 @@
 	"type":"object",
 	"required":true,
 	"properties":{
+		"host" : {
+			"type": "string",
+			"title":"Target IP"
+		},
+		"port" : {
+			"type": "integer",
+			"title":"Port",
+			"default": 5568
+		}
 	},
 	"additionalProperties": true
 }