Enhance API routing and health check functionality

- Added ApiRouteTemplate as a base class for defining API routes
- Implemented HealthCheckApi for health check endpoint management
- Introduced IApiRoute interface for consistent route handling
- Updated UserApiRoute to align with new routing structure
- Added HealthCheck class for health status retrieval
- Improved dependency management with new types and interfaces

src/logger/Threshold.ts

@@ -1,6 +1,6 @@
 import Defaults from '../Defaults';
-import { Subject } from '../lang/observables';
-import { LoggingLevel } from './LoggingLevel';
+import {Subject} from '../lang/observables';
+import {LoggingLevel} from './LoggingLevel';
 
 export class Threshold {
   private _threshold: Subject<LoggingLevel>;