Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/FSO.Server.Api.Core/Controllers/GameAPI/UpdateController.cs

@@ -0,0 +1,38 @@
+using System.Linq;
+using Microsoft.AspNetCore.Cors;
+using Microsoft.AspNetCore.Mvc;
+
+namespace FSO.Server.Api.Core.Controllers.GameAPI
+{
+    [EnableCors]
+    [Route("userapi/update")]
+    public class UpdateController : ControllerBase
+    {
+
+        // GET userapi/update
+        // get recent PUBLISHED updates for the active branch, ordered by publish date
+        [HttpGet()]
+        public IActionResult Get(int id)
+        {
+            var api = Api.INSTANCE;
+            using (var da = api.DAFactory.Get())
+            {
+                var recents = da.Updates.GetRecentUpdatesForBranchByName(api.Config.BranchName, 20);
+                return new JsonResult(recents.ToList());
+            }
+        }
+
+        // GET: userapi/update/<branch>
+        // get recent PUBLISHED updates for a specific branch, ordered by publish date
+        [HttpGet("{branch}")]
+        public IActionResult Get(string branch)
+        {
+            var api = Api.INSTANCE;
+            using (var da = api.DAFactory.Get())
+            {
+                var recents = da.Updates.GetRecentUpdatesForBranchByName(branch, 20);
+                return new JsonResult(recents.ToList());
+            }
+        }
+    }
+}