feat: added meta info

Author: Amitpnk

src/OA/Controllers/MetaController.cs

@@ -0,0 +1,24 @@
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OA.Controllers
+{
+    public class MetaController : ControllerBase
+    {
+        [HttpGet("/info")]
+        public ActionResult<string> Info()
+        {
+            var assembly = typeof(Startup).Assembly;
+
+            var lastUpdate = System.IO.File.GetLastWriteTime(assembly.Location);
+            var version = FileVersionInfo.GetVersionInfo(assembly.Location).ProductVersion;
+
+            return Ok($"Version: {version}, Last Updated: {lastUpdate}");
+        }
+    }
+}