loader/util: fully implement zstd bic variant ...

Implement both compression and decompression utilities and simplify loader logic

lz4: update to git-master

ams: support building unit test programs on windows/linux/macos

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

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: implement ReadWriteLock

ams: finish stdio -> fs bindings for stratosphere

stratosphere-except-ldr: use fs bindings (this temporarily breaks loader)

util: add uuid

ams: revamp assertion system

kern: use TinyMT instead of mt19937_t

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

Fix another off-by-one in TinyMT init calcs

tinymt: correct init iter count

random: use TinyMT instead of XorShift

git subrepo clone https://github.com/Atmosphere-NX/Atmosphere-libs libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "07af583b"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "07af583b"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"