feat: Add patch to ipaddress assignedobject

Author: smutel

patchs/swagger-v2.11.12-ipaddress-assignedobject.patch

@@ -0,0 +1,13 @@
+--- ../netbox/swagger-v2.11.12.json.ori	2021-08-31 16:12:37.733183398 +0200
++++ ../netbox/swagger-v2.11.12.json	2021-08-31 16:15:57.052079387 +0200
+@@ -13173,10 +13173,6 @@
+                   "type" : "string"
+                 },
+               "assigned_object" : { 
+-                  "additionalProperties" : { 
+-                      "type" : "string",
+-                      "x-nullable" : true
+-                    },
+                   "readOnly" : true,
+                   "title" : "Assigned object",
+                   "type" : "object"