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.Database/DA/Elections/DbMayorRating.cs

@@ -0,0 +1,18 @@
+namespace FSO.Server.Database.DA.Elections
+{
+    public class DbMayorRating
+    {
+        public uint rating_id { get; set; }
+        public uint from_user_id { get; set; }
+        public uint to_user_id { get; set; }
+
+        public uint rating { get; set; }
+        public string comment { get; set; }
+        public uint date { get; set; }
+
+        public uint from_avatar_id { get; set; }
+        public uint to_avatar_id { get; set; }
+        public byte anonymous { get; set; }
+        public uint neighborhood { get; set; }
+    }
+}