Add Browserstack API integration and supported browser type

* Created `BrowserstackApi` class for interacting with the Browserstack API, including a method to fetch supported browsers.
* Introduced `SupportedBrowser` type to define the structure of browser data returned from the API.
* Updated `TestRunner` to instantiate and run the test execution process, enabling command line options logging.

test/config/Browserstack/BrowserstackApi.ts

@@ -0,0 +1,20 @@
+import SupportedBrowser from "./SupportedBrowser";
+
+export class BrowserstackApi {
+    private readonly _baseUrl: string = 'https://api.browserstack.com/5';
+    private readonly _authorizationHeader: string;
+
+    constructor(username: string, accessKey: string) {
+        this._authorizationHeader = `Basic ${Buffer.from(`${username}:${accessKey}`).toString('base64')}`;
+    }
+
+    public async getSupportedBrowsers(): Promise<SupportedBrowser[]> {
+        const response = await fetch(`${this._baseUrl}/browsers?flat=true`, {
+            headers: {
+                'Authorization': this._authorizationHeader
+            }
+        });
+
+        return response.json() as Promise<SupportedBrowser[]>;
+    }
+}

test/config/Browserstack/SupportedBrowser.ts

@@ -0,0 +1,10 @@
+type SupportedBrowser = {
+    os: string; 
+    os_version: string;
+    browser: string;
+    device: string;
+    browser_version: string | null;
+    real_mobile: boolean;
+}
+
+export default SupportedBrowser

test/runner/TestRunner.ts

@@ -12,9 +12,11 @@ class TestRunner {
   private static readonly _commandLineOptions: CommandLineOptions = CommandLine.parse(process.argv);
 
   public static main(): void {
-    // const testRunner = new TestRunner();
-    // testRunner.run();
+    const testRunner = new TestRunner();
+    testRunner.run();
+  }
 
+  public run(): void {
     console.log(TestRunner._commandLineOptions);
   }
 }