[NAE-2034] Otvorenie prvého viewu

- abstract loading and navigation in double drawer menu
- implement default view opening in double drawer menu

Author: Retoocs

nae.json

@@ -1302,6 +1302,9 @@
         },
         "groupNavigation": {
             "groupNavigationRoute": "group-nav"
+        },
+        "doubleDrawer": {
+            "url": "drawer-double"
         }
     }
 }

projects/netgrif-components-core/src/commons/schema.ts

@@ -341,6 +341,9 @@ export interface Services {
     groupNavigation?: {
         groupNavigationRoute: string,
     };
+    doubleDrawer?: {
+        url: string,
+    }
 
     [k: string]: any;
 }