* Finished working on tiling
* Changed how sprite layers work. Sprite layers are now not confined to the limits of the actual canvas but instead will decide where to draw each sprite based on the canvas offset and the sprites location
* Rewrote the actor animation system to work like sprites
* Renamed a few functions
* Added DeleteSpriteAnimation() and the delete queue to sprites
* Removed transitions for the time being (they don't seem to work in irrlicht right now
* Added PreUpdate() function
* Added documentation for name changes and new functions
* Changed the names of some of the functions
* Added functions for setting and returning the projection matrix of the active camera
* Added a function for getting the 2D screen coordinates from a 3D vector
* Added documentation for all the new functions
* Added collision callback
* Set sprite density to 1 by default
* Added default frame value of 0 on frame resize
* Changed defaults for sprite fixture
* Made changes to some of the animation functions parameters
* Fixed ByRef variables of defined types causing crashes
* Fixed ArrayDim causing crashes with members of types
* Added parent references to number and string values for use with ByRef
* Added TypeArrayDim
* Added the ability to use custom types in embedded functions
* Added the ability to create types in embedded_functions.bas
* Added new output file for embedded (rcbasic_dev4.txt) that will output code to generate types
* Added defined types to byref exceptions
