[Feature/Enhancement] CHD or Alternative Compression Format

Apologies if this is addressed elsewhere. I couldn't find any issue to reference.

Are there any plans for a compressed file format on Xenia's roadmap?

Currently, Xenia can read ISOs or their extracted contents. It would be helpful if a compressed format, ideally archival quality, could be used instead. CHD has become a standard for the majority of disc-based console emulators at this point, and it may be a good option for Xenia. CXBX-Reloaded is currently considering using CHD or XISO for a compressed format. CHD files would reduce storage requirements while allowing the contents to be read without a notable performance hit. There is an existing CHD library to ease some of the implementation headaches, as well.