Logic and structures are largely taken from Linux source:
drivers/bluetooth/btusb.c
drivers/bluetooth/btrtl.c
drivers/bluetooth/btrtl.h

Unlike custom banners which work as an override, this mechanism works as
a fallback. The use case is if you have games you don't really play but
want to keep around for testing purposes without filling up your NAND
with lots of saves. For ease of use, the directory structure is the same
but only title/$title_hi/$title_lo/data/banner.bin files are
relevant.

It was being done manually, which a TODO comment advised against.
Using generic_string() from std::filesystem::path solves this.

Fix encoding issue using generic_wstring instead.

Badges are saved in /User/Cache/RetroAchievements on first download and reused from there instead of redownloaded.

Rekindle software JIT profiling with a std::chrono conversion and a config connection.

I mistakenly put `D_DUMP_IDX` here instead of `D_DUMPDEBUG_IDX`.

With a purpose-built Branch Watch feature built into the emulated system: BranchWatchDialog, replacing CodeDiffDialog, is now better than ever!