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-1312 Initial version running on DiscoveryF4
OP-1312 add a switch to include/exclude the driver
OP-1312 Missing ifdefs on pios_board.c
OP-1312 Add support for Revolution (right now always active on pin3). Configurability not yet added
OP-1312 Make WS2811 driver configurable.
Now output pin may be chosen among all servo outputs and Flexi-io pins 3 and 4 (they are not used for PWM input/output)
OP-1302 Remove the special case for Telemetry in Alarm.c and shut up the telemetry warning in telemetry.c when disconnected
OP-1312 Fixed led boundary check and framebuffer color order.
OP-1312 fix documentation, get rid of stale comments from previous implementations
OP-1312 remove boilerplate from config using macros.
Use four locations for ch1+update dma source to exploit fifo and memory read bursts
OP-1312 fix copy/paste-naming issue
OP-1329 Various fixes to airspeed:
- Prevent Airspeed module with Sensor=none from constantly running and updating AirspeedSensor
- Do not call gps_airspeedInitialize if not needed
OP-1330 Delay SetHomeLocation call from GPS module to be able to save HomeLocation.Set=false