external Hostapd Stretch

Re ticketed from #458

Stretch goal - Position pining

ENV{ID_PATH} - possibly a variable for rule
udevadm info /sys/class/net/wlan-ap - List all udev attributes

Example of udev file
/etc/udev/rules.d/70-persistent-net.rules

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="ath9k_htc", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan-ap"
