Mostly drivers and supplementary packages - most install to md_inst which should be handled better now,
but also adjusted sixaxis to use md_build rather than a subfolder in md_build as it didn't seem to require it.
* sixaxis: add special check for libbluetooth3 and reload bluetooth
stack if install was triggered, otherwise sixaxis plugin will not be active.
* customhidsony: update patch and amend module description
* Installs multi-instance systemd service, triggered via udev
rules matching supported Sixaxis-compatible pads
* Configure fuzz on analog axes to mitigate erratic resting state values
* When connecting via Bluetooth, implement idle disconnect based on event
activity (needed due to BlueZ's sixaxis plugin not respecting the
IdleTimeout setting).
