Some notes:
* Unless `atmosphere!enable_log_manager` is true, Nintendo's log manager will be used instead.
* This prevents paying memory costs for LM when not enabling logging.
* To facilitate this, Atmosphere's log manager has a different program id from Nintendo's.
* `atmosphere!enable_htc` implies `atmosphere!enable_log_manager`.
* LogManager logs to tma, and the SD card (if `lm!enable_sd_card_logging` is true, which it is by default).
* Binary logs are saved to `lm!sd_card_log_output_directory`, which is `atmosphere/binlogs` by default.
* 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
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.
