htc: implement remaining htclow::HtclowManagerImpl funcs (mux impls pending)

htc: declare and begin impl of HtclowManagerImpl interface

htc: optimize Mux::QuerySendPacket

mux: optimize many accesses to O(log(n)) vs Nintendo's O(log(n)^2)

htc: implement HtclowDriver

htc: begin skeletoning types for HtcmiscImpl

htc: hook up creation of the htc manager service object

htc: module id names, skeleton rest of main

htc: implement remaining worker thread send logic (for channel mux)

htc: send logic for HtcctrlService, bugfixes (thanks @misson20000)

rapidjson: add customization point for allocation/asserts

htc: add remaining worker receive thread logic

htc: implement service channel parsing (ReceiveReadyPacket)

rapidjson: import -master as ams::rapidjson

htc: implement much of worker receive logic

htc: fix copy/paste error in usb driver

htc: free ourselves from the tyranny of numerical enums

htc: implement htclow listener thread

htc: actually use the usb driver

htc: implement complete usb driver

htc: implement (fixing linker errors) through HtclowManagerImpl::OpenDriver

htclow: fix copyright headers, skeleton more manager types

htc: skeleton much of the type hierarchy for htclow manager

htc: skeleton some more of main

htc: skeleton main file/sysmodule dir

kern: alleviate a little KPort pressure.

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

psc: fix pm module init

usb: fix wrong command id for AppendConfigurationData