ams: globally prefer R_RETURN to return for ams::Result

spl: refactor for accuracy/move into libstrat

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

sf: Change interface definition methodology (#1074) ...

* sf: Begin experimenting with new interface declaration format

* sf: convert fs interfaces to new format

* sf: finish conversion of libstrat to new definitions

* sf: convert loader to new format

* sf: convert spl to new format

* sf: update ncm for new format

* sf: convert pm to new format

* sf: convert ro/sm to new format

* sf: update fatal for new format

* sf: support building dmnt under new scheme

* sf: update ams.mitm for new format

* sf: correct invocation def for pointer holder

* fs: correct 10.x+ user bindings for Get*SpaceSize

hos::Version: rename enum members

find -exec sed -i'' -e 's/2018-2019 Atmo/2018-2020 Atmo/g' {} +

strat: split out common functionality for future meso use

namespace sts -> namespace ams ...

namespace sts::ams -> ams::exosphere, ams::.

This is to facilitate future use of ams:: namespace code in
mesosphere, as we'll want to include ams::util, ams::result, ams::svc...

spl: update for new-ipc (fixes two bugs in sf)

Fix for 4.X units (new strato rework broke a method in spl) (#616) ...

* Fix for 4.X units (new strato rework broke a method in spl)

* Fixed formatting in spl

stratosphere: all in on enum class CommandId

boot/spl: update for spl-in-libstrat

spl: refactor into sts namespace

spl: implement CryptoService.

spl: Start skeletoning spl.