cs: fix launching of tio server

cs: fix screenshot packet semantics

cs: implement TakeScreenShot command

cs: fix allocator aborts

osdbg: implement thread info api

fix dmnt.gen2 title id (not sure how I typo'd this)

boot2: launch dmnt.gen2 over dmnt, when using htc

cs: implement GetFirmwareVersion command

scs: implement EventHandlerThread for shell

scs: implement DoShellServer

LogManager: implement system module, client api, logging api (#1617) ...

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.

fusee: attempt reboot to self if possible, better abort/fatal handlers

stratosphere: remove 0.19.0 update cleanup logic.

ams-1.0.0: meso no longer optional, remove conditional logic

dmnt: various cheat changes/suggestions that have been cooking a while

exo/daybreak: advertise (and check against) supported hos version

ams-libs: fix change detection for library building

ams: std::optional -> util::optional

ams: basic support for 12.1.0

fs.mitm: add OpenDataStorageWithProgramIndex support (theoretically, closes #1250)

erpt: fix 0x100 byte memory leak on creation of new report

ams: bump version to 0.19.4

mem: actually fully fix the heap bug, add comments for future self

mem: fix rare crash/logic error in heap allocation code

libstrat: fix override operator new to be noexcept (closes #1494)

sf/tipc: treat min/max as true min/max, rather than numeric

ams: update for 12.0.2

ams: move around abort handler to avoid linker errors

sm: update to excise unnecessary library code

fs: add access log strings for DirectoryEntryType