export of thermostat and windowcontact

src/MaxWindowContact.ts

@@ -1,7 +1,7 @@
 import * as logger from './log'
 import { mqttHandler } from './MqttDispatcher'
 import { AHomematicItem } from './AHomematicItem'
-// import { SwitchExport, ExportType } from './Export'
+import { ContactExport, ExportType } from './Export'
 
 export class MaxWindowContact extends AHomematicItem {
     private deviceFeedbackTopic: string
@@ -24,6 +24,10 @@ export class MaxWindowContact extends AHomematicItem {
         ]
     }
 
+    exportItem() : ExportType|null {
+        return ContactExport(this.itemId, this.label, this.stateFeedbackTopic)
+    }
+
     processMessage(topic: string, payload: string) : void {
 	if (payload == 'true') {
 		this.state = 'OPEN'