Add new commands.

Quik/CommandQueue/Command.cs

@@ -22,13 +22,16 @@ namespace Quik.CommandQueue
         ConditionalEnd,
 
         PushViewport,
+        IntersectViewport,
         StoreViewport,
         PopViewport,
 
+        PushZ,
         IncrementZ,
         AddZ,
         StoreZ,
         DecrementZ,
+        PopZ,
 
         PushMatrix,
         StoreIdentityMatrix,

Quik/CommandQueue/CommandQueue.cs

@@ -28,9 +28,14 @@ namespace Quik.CommandQueue
             Enqueue(Command.ConditionalEnd);
         }
 
-        public void PushViewport(in QuikRectangle viewport)
+        public void PushViewport()
         {
             Enqueue(Command.PushViewport);
+        }
+
+        public void IntersectViewport(in QuikRectangle viewport)
+        {
+            Enqueue(Command.IntersectViewport);
             Enqueue(viewport);
         }
 
@@ -45,6 +50,11 @@ namespace Quik.CommandQueue
             Enqueue(Command.PopViewport);
         }
 
+        public void PushZ()
+        {
+            Enqueue(Command.PushZ);
+        }
+
         public void IncrementZ()
         {
             Enqueue(Command.IncrementZ);
@@ -78,6 +88,11 @@ namespace Quik.CommandQueue
             Enqueue(Command.DecrementZ);
         }
 
+        public void PopZ()
+        {
+            Enqueue(Command.PopZ);
+        }
+
         public void Line(in QuikLine line)
         {
             Enqueue(Command.Line);