SD2SP2 support

[NiHuShu]

Tested on my GameCube with Splinter Cell exploit and DIY SD2SP2 and it works like a charm

[Papy-G]

It would be really nice to see it compressed then released as a .gci

[suloku]

I uploaded a compiled version here: https://gc-forever.com/forums/viewtopic.php?f=37&t=3036#p45136

I've just made myself aware of the existence of dolxz compressor, I think compressing and building the gci with it might reduce needed blocks.
https://github.com/FIX94/dolxz

[Papy-G]

I have reported the fails I experienced with the 3january version in that GC forever topic you mention.

So I use Ledu205's viper iplboot SD2SP2 modded, while I'll love to see the Brosexecauto (NiHuSu's SD2SP2 modded) compressed, even if it'll still be a bit bigger, as it permits direct homebrew selection off the save exploit.
Also, I prefer the launching without transition over the "verbose mode" the Viper's iplboot has.