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/FileSystem.cs

@@ -0,0 +1,44 @@
+using System.Diagnostics;
+using System.IO;
+
+namespace Mongo2Go.Helper
+{
+    public class FileSystem : IFileSystem
+    {
+        public void CreateFolder(string path)
+        {
+            if (!Directory.Exists(path))
+            {
+                Directory.CreateDirectory(path);
+            }
+        }
+
+        public void DeleteFolder(string path)
+        {
+            if (Directory.Exists(path))
+            {
+                Directory.Delete(path, true);
+            }
+        }
+
+        public void DeleteFile(string fullFileName)
+        {
+            if (File.Exists(fullFileName))
+            {
+                File.Delete(fullFileName);
+            }
+        }
+
+        public void MakeFileExecutable (string path) 
+        {
+            //when on linux or osx we must set the executeble flag on mongo binarys
+            var p = Process.Start("chmod", $"+x {path}");
+            p.WaitForExit();
+
+            if (p.ExitCode != 0) 
+            {
+                throw new IOException($"Could not set executable bit for {path}");
+            }
+        }
+    }
+}