Don't tick song playback counter during row step-play

Update pt_pal_editor.vcxproj

Audio code changed from double-precision float to single-precision float

No need for floating-point logic here

Update pt2_sampling.c

Remove intro status text entirely

Bug fix for when editing "POS" digits

Remove "F00" effect removal hack in .mod loader

Update pt2_header.h

Higher-quality 2x downsamplers