MPG, Dvd, ISO, and JPG now working

Latest adjustments to the HelloWorld-JC program now include the ability to playback MPG, Dvd files, and automatically mount ISOs. I was also able to extract some code for having the chip render JPG. I was concerned that the method used for decoding the JPG was to pass the information via RPC to the chip. I figured that would interfere with the playback. Turns out, it doesn't! Since all of the decoding is done on the chip, the processor continues to be free to read and unpackage the media it is streaming.