Optimize HitBox Drawing

[Cleptomania]

Arcade has the ability to draw hitboxes for a Sprite, SpriteList, or Scene. However, this function essentially loops on every sprite, and makes a call to arcade.draw_line_strip with the adjusted points for that Sprite's hitbox. This is incredibly inefficient and will completely destroy performance even with only 100-200 sprites.

There may be a better way to batch draw these, perhaps using Pyglet shapes is an opportunity. This will definitely need more investigation into the best ways to handle this.

[einarf]

We can do a quick fix for 3.0 just looping and bulding a buffer of lines to improve this greatly. It's not a perfect solutuon, it will be dramatically faster.

[einarf]

Made it about 20 times faster here. It should still be improved a lot more but I suspect triangle data for hitboxes could make this easier in the future.
#2627