kern: alleviate a little KPort pressure.

sm: fix abort on RegisterService while at port limit ...

closes #1382

General system stability improvements to enhance the user's experience.

dmnt: set the debug process handle slightly more carefully

git subrepo push libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "bc08912d"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "bc08912d"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

ams: bump version to 0.18.1

ams: add kernel to debug elf zip

fs.mitm: fix cache of non-current-process data storages (closes #1371)

Correct ams_mitm.md formatting ...

Move set_mitm H3's under correct H2 element

psc: fix pm module init

usb: fix wrong command id for AppendConfigurationData

usb: add ds client api

kern: fix support for virtual core IDs

util: add FixedSet

util: add FixedMap::clear

ams: add transient unit testing sysmodule to gitignore

util: various FixedMap fixes

util: add FixedMap/FixedTree

util: impl::AvailableIndexFinder

dns.mitm: allow nullptr for port string (closes #1352)

git subrepo push libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "17960517"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "17960517"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

hid: fix sm usage

ncm: fix ContentStorageImplBase constructor

dns.mitm: fix hosts file parsing bug

dns.mitm: make line ordering explicit, rather than implicit. ...

This doesn't actually change functionality, because this is how std::unordered_map worked anyway...

...but it's better for us to be explicit, I think.

docs: fix missing meme (important)

git subrepo push libraries ...

subrepo:
  subdir:   "libraries"
  merged:   "90d85295"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "90d85295"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

ams: bump version to 0.18.0

docs: expand dns_mitm wildcard wording

dns.mitm: add documentation