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/Tuning/DbTuningPreset.cs

@@ -0,0 +1,20 @@
+namespace FSO.Server.Database.DA.Tuning
+{
+    public class DbTuningPreset
+    {
+        public int preset_id;
+        public string name;
+        public string description;
+        public int flags;
+    }
+
+    public class DbTuningPresetItem
+    {
+        public int item_id;
+        public int preset_id;
+        public string tuning_type;
+        public int tuning_table;
+        public int tuning_index;
+        public float value;
+    }
+}