L-line relay (#166)

* Initial version of L-Line Relay

* lline relay fix build, add to health

* Add lline relay to safety

* Lline relay fix build

* Fix tests

* Add lline safety init. Dont fwd with relay closed

* Turn on relay with CAN

* relay hook

* More reliable lline relay

* Longer LLine timeout

* Only turn on wifi if not eon

* Dont disable ESP in early

* Allow CAN to be turned off

 - CAN is turned off via USB.
 - CAN is turned on when either try to transmit or can is received
 - If only transmit is asleep, all messages should send okay
 - If receive is alseep, will miss first message while waking up
 - Sometimes will report error on second message while CAN perif wakes up
 - Saves 130mW!

* Power Saver Mode

 - Gray Panda power consumption 650mw -> 325mW
 - Turns off CAN, GMLAN, LIN, GPS when no activity for 10s
 - No acitvity is no CAN send, CAN Recv, Write to GPS

* Fix power_saving to better turn off can

 - On some cars when the can is turned off, it triggers a wakeup.
 Delaying the automatic wakeup seems to fix this

* Don't save power in pedal

* Fix relay clicking on startup

* Fix duplicate include

* consistent relay setting

* relay_status can be added when needed, as it's started_alt was consumed in other places

* need to skip forwarding only if relay control is claimed

* unneded change

* make lline_relay.h not depending on can.h

* less spaghetti I guess

* less lines

* reset pedal changes

* no unused input

* update version

python/__init__.py

@@ -392,6 +392,9 @@ class Panda(object):
     elif bus in [Panda.GMLAN_CAN2, Panda.GMLAN_CAN3]:
       self._handle.controlWrite(Panda.REQUEST_OUT, 0xdb, 1, bus, b'')
 
+  def set_lline_relay(self, enable):
+    self._handle.controlWrite(Panda.REQUEST_OUT, 0xf3, int(enable), 0, b'')
+
   def set_can_loopback(self, enable):
     # set can loopback mode for all buses
     self._handle.controlWrite(Panda.REQUEST_OUT, 0xe5, int(enable), 0, b'')