ams: allow bootloader to merely approximate correct target firmware

loader: refactor to remove fake namespaces

loader: refactor ro manager/improve accuracy

spl: refactor for accuracy/move into libstrat

os: add FlushDataCache

strat: use m_ for member variables

ams: replace most remaining operator & with std::addressof

strat: refactor address taking of form &var[...]

strat: always use explicit result namespacing

settings: implement KeyValueStore (#1659) ...

* settings: implement KeyValueStore and dependencies

* settings: update KeyValueStore for recent refactoring

* settings: address feedback

strat: use ams::Main() instead of main(argc, argv)

strat: build sysmodules with -Wextra/-Werror

libstrat: fix compilation without pre-compiled header/without lto

libstrat: enable -Wextra, -Werror ...

This caught an embarrassingly large number of bugs.

strat: remove map namespace, svc: add address space defs

strat: use sf::NativeHandle for ipc templating

sf: add NativeHandle type ...

TODO: figure out how to integrate this into templating...

strat: prefer os::NativeHandle to Handle/svc::Handle where sensible

pm: use svc::LimitableResource where relevant

strat: use svc:: over ::svc

ams: the copyright^H^H^H^H^H^H^Hmplex plane is the algebraic closure of the reals

os: remove ManagedHandle, refactor to use NativeHandle typename

strat: automatic program id detection

os: adopt nintendo ReaderWriter naming over ReadWrite

os: amend io region api

os: implement SharedMemory, update AslrSpaceManager

os: fix AttachTransferMemory return type

strat: use consistent include style for lib headers

os: adopt multiwait naming over waitable

os: add IoRegion