Incorrect default Origin value for Sprite class

[AristurtleDev]

The Sprite class should have a default origin of (0, 0) to match the default SpriteBatch.Draw origin parameter being the top-left corner. Currently, in the Sprite constructor, OriginNormalized is set to (0.5, 0.5) which is causing the Origin to update to center of the sprite.

MonoGame.Extended/source/MonoGame.Extended/Graphics/Sprite.cs

Line 148 in 080f5e1

OriginNormalized = new Vector2(0.5f, 0.5f);

This should be set to the default Vector2 value or Vector2.Zero