LZ10 decompression is builtin to the GBA's bios, so we don't need ZX0. It's also significantly faster
(618 usec instead of 2311 usec in my personal benchmark code for decompression of the same data)
And it seems like by doing so, we saved 1 KB as well!
So, seems like replacing ZX0 is the right move.
The reason I didn't initially is because I misunderstood the documentation. I assumed LZ77UnCompWram could only uncompress into EWRAM, not IWRAM.
But it turns out it can do both.
And using standardized tools is usually better than using a custom implementation.
The only downside of this right now, is that we can no longer stream text tables through a smaller buffer than the entire decompressed size.
Anyway, things seem to work fine, so bye bye ZX0. It's been fun.
This commit removes all references to things in the libstdc++ library to remove a decent chunk of bloat.
This means every std::to_string() call, std::string and std::vector. (as well as iostream related stuff).
I replaced those with my own versions ptgb::to_string() and ptgb::vector. Especially the latter is not exactly the same,
but close enough.
I also replaced operator new and delete with my own implementation to avoid pulling in everything related to exceptions
from libstdc++
Another problem was the fact that libtonc uses siscanf, which pulls in everything related to the scanf family of functions
and locale support. The worst part of that was that it included a 13KB "categories" symbol from libc_a-categories.o,
which was pulled in because of the locale support integrated into newlibc's siscanf() function. To fix that, I created a
custom, extremely restricted implementation of siscanf. libtonc only used this function to parse at most 2 integers from a
string anyway.
