split the animations namespace into two nuget packages

Source/MonoGame.Extended.Tweening/TweenChain.cs

@@ -0,0 +1,27 @@
+using System;
+
+namespace MonoGame.Extended.Tweening
+{
+    public class TweenChain<T> : TweenAnimation<T>
+    {
+        private int _currentTweenIndex;
+
+        public TweenChain(T target, Action onCompleteAction = null, bool disposeOnComplete = true)
+            : base(target, onCompleteAction, disposeOnComplete)
+        {
+            _currentTweenIndex = 0;
+        }
+
+        protected override bool OnUpdate(float deltaTime)
+        {
+            var currentTween = Tweens[_currentTweenIndex];
+
+            currentTween.Update(deltaTime);
+
+            if (currentTween.IsComplete)
+                _currentTweenIndex++;
+
+            return _currentTweenIndex >= Tweens.Count;
+        }
+    }
+}