Added comments and some refactoring to new files

src/app/core/shared/resource-policy.model.ts

@@ -1,20 +1,40 @@
-
 import { CacheableObject } from '../cache/object-cache.reducer';
 import { ResourceType } from './resource-type';
+import { Group } from '../eperson/models/group.model';
+import { ActionType } from '../cache/models/action-type.model';
 
+/**
+ * Model class for a Resource Policy
+ */
 export class ResourcePolicy implements CacheableObject {
+  /**
+   * The action that is allowed by this Resource Policy
+   */
+  action: ActionType;
 
-  action: string;
-
+  /**
+   * The name for this Resource Policy
+   */
   name: string;
 
-  // TODO group should ofcourse become a group object
-  group: string;
+  /**
+   * The Group this Resource Policy applies to
+   */
+  group: Group;
 
+  /**
+   * The link to the rest endpoint where this Resource Policy can be found
+   */
   self: string;
 
+  /**
+   * A ResourceType representing the kind of Object of this ResourcePolicy
+   */
   type: ResourceType;
 
+  /**
+   * The universally unique identifier for this Resource Policy
+   */
   uuid: string;
 
 }