Renamed the update>Entity Name>() functiuons to update()

ref #76

src/models/actions/update/UpdatePermission.ts

@@ -42,7 +42,7 @@ export class UpdatePermission {
     /**
      * Updates a provided Permission entity based on this.
      */
-    public async updatePermission(permission: Permission): Promise<Permission> {
+    public async update(permission: Permission): Promise<Permission> {
         permission.principal = await this.getPrincipal();
         permission.target = this.target;
         permission.action = this.action;