Refactor logging level handling and remove example usage

* Updated `CommandLineOptions` and `ConfigurationObject` to use `LoggingLevel` type instead of string for log levels.
* Modified `LoggerFactory` to set logging levels using the new `LoggingLevelMapping` methods.
* Removed the `example-usage.ts` file as it was no longer needed.
* Adjusted `Threshold` class to simplify logging level management.

test/runner/TestRunner.ts

@@ -1,25 +1,19 @@
-import PCastAPI from '@techniker-me/pcast-api';
-import RtmpPush from '@technniker-me/rtmp-push';
+import LoggerFactory from '../logger/LoggerFactory';
 import CommandLine from '../config/CommandLine';
+import { CommandLineOptions } from '../config/CommandLine';
 
-interface CommandLineOptions {
-  applicationId: string;
-  secret: string;
-  logLevel: string;
-}
-
-class TestRunner {
+export default class TestRunner {
+  private static readonly _logger = LoggerFactory.getLogger('TestRunner');
   private static readonly _commandLineOptions: CommandLineOptions = CommandLine.parse(process.argv);
 
-  public static main(): void {
-    const testRunner = new TestRunner();
-    testRunner.run();
+  static {
+    TestRunner.run();
   }
 
-  public run(): void {
-    console.log(TestRunner._commandLineOptions);
+  public static run(): void {
+    LoggerFactory.setLoggingLevel(TestRunner._commandLineOptions.logLevel);
+
+    TestRunner._logger.info('TestRunner started');
+    TestRunner._logger.info(JSON.stringify(TestRunner._commandLineOptions, null, 2));
   }
-}
-
-TestRunner.main();
-
+}