Adding support for arming Elk M1 security system.

config-sample.json

@@ -102,6 +102,15 @@
             "off_url": "https://192.168.1.22:3030/devices/23222/off",
             "brightness_url": "https://192.168.1.22:3030/devices/23222/brightness/%b",
             "http_method": "POST"
+        },{
+            "accessory": "ELKM1",
+            "name": "Security System",
+            "description": "Allows basic control of Elk M1 security system. You can use 1 of 3 arm modes: Away, Stay, Night. If you need to access all 3, create 3 accessories with different names.",
+            "zone": "1",
+            "host": "192.168.1.10",
+            "port": "2101",
+            "pin": "1234",
+            "arm": "Away"
         }
     ]
 }