feat: Initialize Zastava Webhook service with TLS and Authority authentication

- Added Program.cs to set up the web application with Serilog for logging, health check endpoints, and a placeholder admission endpoint.
- Configured Kestrel server to use TLS 1.3 and handle client certificates appropriately.
- Created StellaOps.Zastava.Webhook.csproj with necessary dependencies including Serilog and Polly.
- Documented tasks in TASKS.md for the Zastava Webhook project, outlining current work and exit criteria for each task.

Mongo2Go-4.1.0/src/Mongo2Go/Helper/IPortPool.cs

@@ -0,0 +1,10 @@
+namespace Mongo2Go.Helper
+{
+    public interface IPortPool
+    {
+        /// <summary>
+        /// Returns and reserves a new port
+        /// </summary>
+        int GetNextOpenPort();
+    }
+}