convert operations fixed
64 bit support added

All features from upstream included - based on r4953 jul 23 2020.
New foobar2000 SDK is used
Preferences refactored with new libPPUI API
Full support of VGM format chips and versions
Added support of Farbrausch V2 Synthesizer System (V2M)
Added support of Raster Music Tracker (.RMT)
Added support of Sega Dreamcast format (DSF)
Added support of Sega Saturn format (SSF)
Added support of Nintendo DS Sound Format (2SF)
Added support of Startrekker format (MOD)
Added support of PlayStation 1&2 Sound Format (PSF,PSF2)
Added support of Nintendo Ultra64 Sound Format (USF)
Added support of GameBoy Advance Sound Format (GSF)