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

dns.mitm: support % in hosts file as stand-in for environment identifier

dns.mitm: fix ABORT_UNLESS -> ABORT

dns.mitm: hint = {} fix in options

dns.mitm: add GetAddrInfo redir, AtmosphereReloadHostsFile, debug logging control

dns.mitm: fix inverted hostname detection

meso: update for new fatal encoding

ams: take three tries to edit a structure

ams: afsr0 -> 32 bits in fatal error

ams: fix fatal error context

dns.mitm: support wildcards in hosts

dns.mitm: edit default behavior/hosts filenames

dns.mitm: fix issue in host file parsing

dns.mitm: parse redirections from hosts file

dns: implement GetHostByName redirection (backend TODO)