OpenTESArena 0.3.0

For this release, I focused primarily on developing a software renderer prototype to replace my OpenCL renderer with (since OpenCL isn't really a graphics API). I intend for the rendering to be more simple so it is easier to work with, and so I can spend more time developing other parts of the program.

Another important addition is the implementation of a PKLITE v1.12 decompressor for A.EXE, so more data such as locations and names can be read in at runtime. Thanks to @Dozayon for the PKLITE specification.