RetroPie Setup system possible corrections

[2Play]

hello to all & @mitu

Just wanted to post some more findings

- PCFX System
Extension in es_systems are
<extension>.pce .ccd .cue .iso .chd .PCE .CCD .CUE .ISO .CHD</extension>
I believe as per RPie Docs should be
<extension>.img .ccd .cue .iso .chd .IMG .CCD .CUE .ISO .CHD</extension>

But as per libretro docs to should be:
<extension>.toc .ccd .cue .chd .TOC .CCD .CUE .CHD</extension>
Extensions¶
Content that can be loaded by the Beetle PC-FX core have the following file extensions:
.cue
.ccd
.toc
.chd

- DOLPHIN (GC+WII)
As per libretro docs and since RPie setup has lr-dolphin
extension should be
.elf .iso .gcm .dol .tgc .wbfs .ciso .gcz .wad .rvz
or as per format
<extension>.elf .iso .gcm .dol .tgc .wbfs .ciso .gcz .wad .rvz .ELF .ISO .GCM .DOL .TGC .WBFS .CISO .GCZ .WAD .RVZ</extension>

- SEGA SATURN extensions
As per libretro (lr-yabause, lr-beetle-saturn) I suggest
<extension>.cue .mds .toc .m3u .zip .ccd .chd .iso .CUE .MDS .TOC .M3U .CCD .ZIP .iso</extension>

-x68000 extensions
As per libretro docs I suggest for the core
<extension>.dim .zip .img .d88 .88d .hdm .dup .2hd .xdf .hdf .cmd .m3u .DIM .ZIP .IMG .D88 .88D .HDM .DUP .2HD .XDF .HDF .CMD .M3U</extension>

Again just suggestion, findings