* Avoid performing any crypto operations on null NCA key area entries.
* Added commented out code to handle the aes_ctr_ex NCA key area entry, just in case we end up needing it at some point.
* Updated hardcoded system title list to match HOS 11.0.0.
* Updated NcaKeyGeneration_Current.
* Updated button input handling to match the new pad API from libnx.
* Cancel USB file transfer if something goes wrong during a NSP transfer via USB.
* Added SD card RomFS dumper.
* Further optimizations to the *WriteNcaPatch() functions.
* Change struct naming in nso.c/h (thanks @0Liam !).
* Replace fsp-usb with libusbhsfs. ( ͡° ͜ʖ ͡°)