loader: refactor ro manager/improve accuracy

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

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

set.mitm: fake compatibility for usb!usb30_force_enabled on 9.0.0+ (#1391) ...

* set.mitm: fake compatibility for usb!usb30_force_enabled on 9.0.0+

* set.mitm: add value meaning comment for usb!usb30_force_enabled

* loader: pretend to be polite about patch ordering

Switch atmosphere's build target to C++20. (#952) ...

* ams: update to build with gcc10/c++20

* remove mno-outline-atomics

* ams: take care of most TODO C++20s

* fusee/sept: update for gcc10

* whoosh, your code now uses pre-compiled headers

* make: dependency fixes

os: refactor/rewrite entire namespace.

loader: refactor to use fs bindings

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...

loader: completely rewrite.

loader: refactor for R_TRY

atmosphere: current year is 2019

Add and fix copyright notices for better GPL compliance (thanks @naehrwert and @CTCaer).

Stratosphere: use isxdigit to check if char is hex.

Loader: Change ips patch location to ease patch distribution

Loader/ips: Fix more bugs, now works with simple test on hw.

Loader/ips: fix compile error

Loader: Fix IPS edge condition, change ips location

Loader: Implement IPS/IPS32 patching.

Loader: Skeleton IPS/IPS32 patching support.