Backported vsync changes from new-netcode, WIP hull visibility culling

The hull culling functions are there, they just aren't being used right now because there are some annoying bugs.

Subsurface/Source/Items/Components/Machines/Deconstructor.cs

@@ -82,10 +82,14 @@ namespace Barotrauma.Items.Components
 
         public override void DrawHUD(SpriteBatch spriteBatch, Character character)
         {
-            GuiFrame.Update((float)Physics.step);
             GuiFrame.Draw(spriteBatch);
         }
 
+        public override void UpdateHUD(Character character)
+        {
+            GuiFrame.Update((float)Physics.step);
+        }
+
         private bool ToggleActive(GUIButton button, object obj)
         {
             SetActive(!IsActive);

Subsurface/Source/Items/Components/Machines/Engine.cs

@@ -119,6 +119,11 @@ namespace Barotrauma.Items.Components
       
         }
 
+        public override void UpdateHUD(Character character)
+        {
+            GuiFrame.Update(1.0f / 60.0f);
+        }
+
         public override void UpdateBroken(float deltaTime, Camera cam)
         {
             force = MathHelper.Lerp(force, 0.0f, 0.1f);

Subsurface/Source/Items/Components/Machines/Fabricator.cs

@@ -338,6 +338,11 @@ namespace Barotrauma.Items.Components
         }
 
         public override void DrawHUD(SpriteBatch spriteBatch, Character character)
+        {
+            GuiFrame.Draw(spriteBatch);
+        }
+
+        public override void UpdateHUD(Character character)
         {
             FabricableItem targetItem = itemList.SelectedData as FabricableItem;
             if (targetItem != null)
@@ -346,7 +351,6 @@ namespace Barotrauma.Items.Components
             }
 
             GuiFrame.Update((float)Physics.step);
-            GuiFrame.Draw(spriteBatch);
         }
 
         private bool CanBeFabricated(FabricableItem fabricableItem, Character user)

Subsurface/Source/Items/Components/Machines/Pump.cs

@@ -155,14 +155,18 @@ namespace Barotrauma.Items.Components
         {
             int x = GuiFrame.Rect.X;
             int y = GuiFrame.Rect.Y;
-
-            GuiFrame.Update(1.0f / 60.0f);
+            
             GuiFrame.Draw(spriteBatch);
             
             spriteBatch.DrawString(GUI.Font, "Pumping speed: " + (int)flowPercentage + " %", new Vector2(x + 40, y + 85), Color.White);
      
         }
 
+        public override void UpdateHUD(Character character)
+        {
+            GuiFrame.Update(1.0f / 60.0f);
+        }
+
         public override void ReceiveSignal(int stepsTaken, string signal, Connection connection, Item sender, float power=0.0f)
         {
             base.ReceiveSignal(stepsTaken, signal, connection, sender, power);

Subsurface/Source/Items/Components/Machines/Reactor.cs

@@ -438,7 +438,6 @@ namespace Barotrauma.Items.Components
             int x = GuiFrame.Rect.X;
             int y = GuiFrame.Rect.Y;
 
-            GuiFrame.Update(1.0f / 60.0f);
             GuiFrame.Draw(spriteBatch);
 
             float xOffset = (graphTimer / (float)updateGraphInterval);
@@ -481,6 +480,11 @@ namespace Barotrauma.Items.Components
             //y = y - 260;
         }
 
+        public override void UpdateHUD(Character character)
+        {
+            GuiFrame.Update(1.0f / 60.0f);
+        }
+
         private bool ToggleAutoTemp(GUITickBox tickBox)
         {
             unsentChanges = true;

Subsurface/Source/Items/Components/Machines/Steering.cs

@@ -160,8 +160,7 @@ namespace Barotrauma.Items.Components
             int width = GuiFrame.Rect.Width, height = GuiFrame.Rect.Height;
             int x = GuiFrame.Rect.X;
             int y = GuiFrame.Rect.Y;
-
-            GuiFrame.Update(1.0f / 60.0f);
+            
             GuiFrame.Draw(spriteBatch);
 
             if (voltage < minVoltage && powerConsumption > 0.0f) return;
@@ -210,6 +209,11 @@ namespace Barotrauma.Items.Components
             }
         }
 
+        public override void UpdateHUD(Character character)
+        {
+            GuiFrame.Update(1.0f / 60.0f);
+        }
+
         private void UpdateAutoPilot(float deltaTime)
         {
             if (posToMaintain != null)