fusee_cpp: implement bpmp cache driver

util: add compile-time validation tests for intrusive red black trees

strat: no longer materially constrained by sm session limit

ams: prefer construct_at/destroy_at over placement new/explicit destructor

ams: remove TYPED_STORAGE() macro in favor of template

libmeso: explicitly blacklist ::sdmmc::, instead of relying on incorrect board tricks

ams: resolve source dir inconsistency

fs: update + consolidate path normalization logic

sdmmc: fix UHS-I tuning init for SD cards

sdmmc: various fixes + logging as bugs are debugged

exo: read first two sd card sectors in mariko_fatal

exo: implement start of mariko fatal handler

boot: add rgltr/clkrst overrides, skel I2cBusAccessor

wec: implement wec driver components for boot sysmodule

sdmmc: implement driver suitable for fs + bootloader ...

* sdmmc: begin skeletoning sdmmc driver

* sdmmc: add most of SdHostStandardController

* sdmmc: implement most of SdmmcController

* sdmmc: Sdmmc2Controller

* sdmmc: skeleton implementation of Sdmmc1Controller

* sdmmc: complete abstract logic for Sdmmc1 power controller

* sdmmc: implement gpio handling for sdmmc1-register-control

* sdmmc: implement pinmux handling for sdmmc1-register-control

* sdmmc: fix building for arm32 and in stratosphere context

* sdmmc: implement voltage enable/set for sdmmc1-register-control

* util: move T(V)SNPrintf from kernel to util

* sdmmc: implement BaseDeviceAccessor

* sdmmc: implement MmcDeviceAccessor

* sdmmc: implement clock reset controller for register api

* sdmmc: fix bug in WaitWhileCommandInhibit, add mmc accessors

* exo: add sdmmc test program

* sdmmc: fix speed mode extension, add CheckMmcConnection for debug

* sdmmc: add DeviceDetector, gpio: implement client api

* gpio: modernize client api instead of doing it the lazy way

* sdmmc: SdCardDeviceAccessor impl

* sdmmc: update test program to read first two sectors of sd card

* sdmmc: fix vref sel

* sdmmc: finish outward-facing api (untested)

* ams: changes for libvapours including tegra register defs

* sdmmc: remove hwinit

kern: build with -Wextra

exo2: implement warmboot firmware

exo2: fix bugs in device unique data decrypytion

exo2: Implement (untested) SmcDecryptDeviceUniqueData

Implement support for parsing/interacting with NCAs. (#942) ...

* fs: implement support for interacting with ncas.

* spl: extend to use virtual keyslots

buildsystem: fix building

crypto: add aes (ecb, ctr, xts)

mem: implement most of StandardAllocator (#860) ...

This was tested using `https://github.com/node-dot-cpp/alloc-test` plus a few other by-hand tests.

It seems to work for the case we care about (sysmodules without thread cache-ing).

External users are advised to build with assertions on and contact SciresM if you find issues.

This is a lot of code to have gotten right in one go, and it was written mostly after midnight while sick, so there are probably un-noticed issues.

crypto: add Sha256Context

crypto: implement RSA-2048-PSS

crypto: Implement BigNum/ExpMod