PogoShell plugin argv footer format

PogoShell reserves the final ~1032 bytes of EWRAM for its argument passing footer.

Offset Size Description
0x203FBF8 4 File size, in bytes (introduced in Sasq's fork; unsupported in 1.2h1, supported in 2.0b4)
0x203FBFC 4 File ROM offset (0x08000000 .. 0x09FFFFFF)
0x203FC00 4 Magic value: 0xFAB0BABE
0x203FC04 4 Number of arguments
0x203FC08 … Zero-delimited arguments