Libretro memcard images

[sg4e]

From a discord conversation concerning the bug:

.sram I had to update to .SAVERAM in order to work properly

because RALibretro saves the files in .mrc and .sram

for some reason [.mcr] doesn't work

I have two saves for each game

one file in .mcr and one in .sram (which I need to manually change to .SAVERAM)