fusee_cpp: implement tsec_keygen firmware execution

fusee_cpp: import full erista mtc logic

fusee_cpp: implement mtc erista patram writes

fusee_cpp: implement erista pll selection logic for mtc

fusee_cpp: implement inline storage of EmcDvfsTimingTables

fusee_cpp: add logic for loading mtc overlays

fusee_cpp: implement bpmp overclock

fusee_cpp: Implement fatal display, reading of fusee-secondary

fusee_cpp: Add display init/fatal error display logic

fusee_cpp: cache cleanup, confirmed working on hardware

fusee_cpp: implement bpmp cache driver

fusee_cpp: implement sd card init

fusee_cpp: implement sdram lp0 scratch param save

fusee_cpp: implement SDRAM initialization

fusee_cpp: tweaks, now completes SecureInitialize on hardware

fusee-cpp: a little more init in SecureInitialize

fusee-cpp: finish SecureInitialize

fusee-cpp: implement SecureInitialize besides InitializeClock()

fusee-cpp: sketch out remainder of secure initialize

fusee-cpp: Implement mbist workaround

fusee-cpp: add basic structural stubs

ams: bump version to 0.20.1

git subrepo push libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "87a1de0b"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "87a1de0b"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

ams: bump to 0.2.0 ...

NOTE: Release will not occur until hekate is ready to handle new sept-less release format.

kern: improve some debug output

kern: fix same is_current check in GetThreadContext

kern: fix check for thread-is-current in KDebugBase::SetThreadContext

kern: remove firmare-specific SignalAndModify impl ...

Nintendo made this breaking change because there was zero official software relying on it,
so it's safe for us to make the same change.

kern: fix hardware watchpoint detection

kern: fix inverted condition in context breakpoint validation