Adds decoding support for Atari 8-bit chiptunes in the following formats: SAP, CMC, CM3, CMR, CMS, DMC, DLT, MPT, MPD, RMT, TMC, TM8, TM2, FC.

Also plays files in all foobar2000-supported formats from ATR disk images.

Fixed sporadic clicks.
Limited memory allocations on loading SAP files.
Minor stability fix for parallel conversions.