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

ref #76

src/controllers/PermissionController.ts

@@ -96,7 +96,7 @@ export class PermissionController {
             return new ResponsePermission(existingPermission);
         }
 
-        await this.permissionRepository.save(await permission.updatePermission(oldPermission));
+        await this.permissionRepository.save(await permission.update(oldPermission));
 
         return new ResponsePermission(await this.permissionRepository.findOne({ id: permission.id }, { relations: ['principal'] }));
     }