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/LotAdmit/SqlLotAdmit.cs

@@ -0,0 +1,35 @@
+using Dapper;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace FSO.Server.Database.DA.LotAdmit
+{
+    public class SqlLotAdmit : AbstractSqlDA, ILotAdmit
+    {
+        public SqlLotAdmit(ISqlContext context) : base(context)
+        {
+        }
+
+        public void Create(DbLotAdmit bookmark)
+        {
+            Context.Connection.Execute("INSERT INTO fso_lot_admit (lot_id, avatar_id, admit_type) " +
+                                        " VALUES (@lot_id, @avatar_id, @admit_type)"
+                                        , bookmark);
+        }
+
+        public bool Delete(DbLotAdmit bookmark)
+        {
+            return Context.Connection.Execute("DELETE FROM fso_lot_admit WHERE lot_id = @lot_id AND admit_type = @admit_type AND avatar_id = @avatar_id", bookmark) > 0;
+        }
+
+        public List<DbLotAdmit> GetLotInfo(int lot_id)
+        {
+            return Context.Connection.Query<DbLotAdmit>("SELECT * FROM fso_lot_admit WHERE lot_id = @lot_id", new { lot_id = lot_id }).ToList();
+        }
+
+        public List<uint> GetLotAdmitDeny(int lot_id, byte admit_type)
+        {
+            return Context.Connection.Query<uint>("SELECT avatar_id FROM fso_lot_admit WHERE lot_id = @lot_id AND admit_type = @admit_type", new { lot_id = lot_id, admit_type = admit_type }).ToList();
+        }
+    }
+}