Some changed to Arbiter collision.
Removed debugging log.
Fixed sprite align and Space Cookies fixes.

fixed Torque,Camera,Attack.
Added more SDF options.
Added To-Do list.
Another To-Do.
Readme type.
DeltaTime is now float64.
Added interpolation.

Also changed AddGameObject.
and some minor changes.
Some changes to Scene.
Added panic to arbiter creation.
Some atlas changed.

Note: we need to build mipmaps by ourselfs.
Atlas changes.

LoadImage returns ID.
Added LoadImageID.
All functions except LoadGroup returns group id.
Atlas fix and Physics smooth.
Interpolation is now optional.
better performances.
Comment out debugging line.
Renaming packages.
Renaming packages pt2.
Renaming packges p3.