v2.1.0 Minor Release

This is just a small update adding a few useful features.

What's Changed

• CircleSector and CircleSectorCollider added by @SoloByte in #44 (CircleSector can be useful for detection cones for instance)
• Outline Percentage drawing for all shapes. by @SoloByte in #45 (can be used to make any shape a progress bar or to have the outline of an enemy be the health bar as an example)

Full Changelog: v2.0.2...v2.1.0