[WIP] Engine Pre-Release 3

[ryandw11]

Additions:

• Improve Physics System
  • Change the physics updater to use the tips here
  • Add the ability to control the rotation using the physics system.
• Implement the tag system more.
  • Add the ability to get items with a certain tag.
  • Add the ability to remove items with a certain tag.
  • Add the ability to ignore tags when selecting items.
  • Add the ability to ignore tags with the collision system. (Might be in Pre2)
• Add in the ability to get already defined fonts.
• More Input Systems.
• Allow UIObjects to have multiple meshes.
• Add a draw distance.
• Add culling for render chunks.(Frustum Culling only. Occlusion Culling was scrapped)

Bug Fixes

• Improve the collision system to use.
  • Prevent objects from bouncing up and down.
  • Prevent objects from falling through the ground.
  • Fix collision glitches.

Refactoring

• Refactor interfaces into separate interfaces, such as Identifiable.
• Remove old systems.