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/tso.common/Rendering/Framework/3DAbstract.cs

@@ -0,0 +1,83 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.Xna.Framework.Graphics;
+using FSO.Common.Rendering.Framework.Camera;
+using FSO.Common.Rendering.Framework.Model;
+
+namespace FSO.Common.Rendering.Framework
+{
+    /// <summary>
+    /// Base class for scenes with 3D elements.
+    /// </summary>
+    public abstract class _3DAbstract : IDisposable
+    {
+        public ICamera Camera;
+        public string ID;
+        public bool Visible = true;
+        public abstract List<_3DComponent> GetElements();
+        public abstract void Add(_3DComponent item);
+        public abstract void Update(UpdateState Time);
+        public abstract void Draw(GraphicsDevice device);
+
+        protected _3DLayer Parent;
+        private EventHandler<EventArgs> ResetEvent;
+
+        public virtual void PreDraw(GraphicsDevice device)
+        {   
+        }
+
+        public virtual void Initialize(_3DLayer layer)
+        {
+            Parent = layer;
+        }
+
+        /// <summary>
+        /// Creates a new _3DAbstract instance.
+        /// </summary>
+        /// <param name="Device">A GraphicsDevice instance.</param>
+        public _3DAbstract(GraphicsDevice Device)
+        {
+            m_Device = Device;
+            ResetEvent = new EventHandler<EventArgs>(m_Device_DeviceReset);
+            m_Device.DeviceReset += ResetEvent;
+        }
+
+        /// <summary>
+        /// Called when m_Device is reset.
+        /// </summary>
+        private void m_Device_DeviceReset(object sender, EventArgs e)
+        {
+            DeviceReset(m_Device);
+        }
+
+        protected GraphicsDevice m_Device; 
+
+        public abstract void DeviceReset(GraphicsDevice Device);
+        public static bool IsInvalidated;
+
+
+
+
+
+        public object Controller { get; internal set; }
+        
+        public void SetController(object controller)
+        {
+            this.Controller = controller;
+        }
+
+        public T FindController<T>()
+        {
+            if(Controller is T)
+            {
+                return (T)Controller;
+            }
+            return default(T);
+        }
+
+        public virtual void Dispose()
+        {
+            if (m_Device != null) m_Device.DeviceReset -= ResetEvent;
+        }
+    }
+}