Fix revolution model filename casing
OP-1302 make leds more "readable"
Show alarm and arming/flightmode in sequence
Alarm:
Warning = rP
Error = rrP
Critical = R

Heartbeat/flightmode:
disarmed = B
armed/Stabilization1 = bbP
armed/Stabilization2 = bbbP
armed/Stabilization3 = bbbbP
armed/AH/AVario/Velocitycontrol = bvP
armed/PH/Pathplanner/POI = bbvP
armed/Land/RTB = bbvvP

note:
r/b/v = short red/blue/both blink
R/B/V = long red/blue/both blink
p/P = short/long pause
OP-1302 filter out telemetry alarms
OP-1302 move stuffs away from systemmod
OP-1302 Fix other targets
OP-1302 Add a stub pios_notify API for user interaction/notifications
right now all notifications produces the same output, the DRAW_ATTENTION sequence
OP-1302 use pios_notify api to alert user of ongoing CF gyro calibration
OP-1302 simplify the code adding some pattern "tables"
OP-1302 Remove the special case for Telemetry in Alarm.c and shut up the telemetry warning in telemetry.c when disconnected
Merge remote-tracking branch 'origin/next' into amorale/OP-1302_updated_led_behaviour
OP-1302 Fixes for current next. Show flightmode everytime it changes when disarmed
Merge branch 'amorale/OP-1302_updated_led_behaviour' into next