fix: builder now uses files provisioners and auto-update installs project data (ref #470)

builder/data/usr/bin/bootblink

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+for i in $(seq 1 "$1");
+do
+echo 0 >/sys/class/leds/led0/brightness
+sleep 0.3
+echo 1 >/sys/class/leds/led0/brightness
+sleep 0.3
+done
+echo 0 >/sys/class/leds/led0/brightness
+sleep 0.3