A collection of tools for the VGM file

* dro2vgm - DRO to VGM Converter
* imf2vgm - IMF to VGM Converter
* opl_23 - OPL 2<->3 Converter
* opt_oki - VGM OKIM6258 Optimizer
* optdac - VGM DAC Optimizer
* optvgm32 - VGM PWM Optimizer
* optvgmrf - VGM RF-PCM Optimizer
* raw2vgm - RAW to VGM Converter
* vgm_cmp - VGM Compressor
* vgm_cnt - VGM Command Counter
* vgm_dbc - VGM Data Block Compressor
* vgm_dso - VGM DAC Stream Optimizer
* vgm_facc - Make VGM Frame Accurate
* vgm_mono - VGM Mono
* vgm_ndlz - VGM Undualizer
* vgm_ptch - VGM Patcher
* vgm_ren.c - VGM Renamer
* vgm_smp1 - Remove 1 Sample Delays
* vgm_sptd - VGM Splitter (Delay Edition)
* vgm_spts - VGM Splitter (Sample Edition)
* vgm_sro - VGM Sample-ROM Optimizer
* vgm_stat - VGM Statistics
* vgm_tag - VGM Tagger
* vgm_tt - VGM Tag Transfer
* vgm_trim - VGM Trimmer
* vgm_vol - VGM Volume Detector
* vgm2txt - VGM Text Writer
* vgmlpfnd - VGM Loop Finder
* vgmmerge - VGM Merger