Add command line parsing and configuration management

* Introduced `CommandLine` class for handling command line options and arguments
* Added `TestConfiguration` class to manage application credentials and URIs
* Implemented example usage for generating command line arguments from a configuration object
* Updated `package.json` to include `commander` dependency
* Removed unused `TestRunner` class and created a new `TestRunner` for executing tests with command line options
* Adjusted logging level type to use lowercase values for consistency

package.json

@@ -11,6 +11,7 @@
   },
   "dependencies": {
     "@techniker-me/pcast-api": "2025.0.2",
-    "@techniker-me/rtmp-push": "2025.0.2"
+    "@techniker-me/rtmp-push": "2025.0.2",
+    "commander": "14.0.0"
   }
 }