multiranger discard range measurements larger with bad status

[knmcguire]

This should fix #874. Here in the multiranger, it will first check if the vl53l1 returns a valid range measurements status, and if not it will output the maximum value of an int16_t

Two questions here:

1. Should I do this also for the z-ranger/flowdeck?
2. Do we want to still output the measurement but just include the ranging status in the logging variable?

[knmcguire]

this is the most important change, the rest is just formatting

[knmcguire]

with discussion with @krichardsson, we decided to add a parameter which presents a filter flag, that indicates for which statuses the measurement, if it should let the measurement through or not, based on these values:

crazyflie-firmware/src/lib/vl53l1/core/inc/vl53l1_def.h

Lines 502 to 535 in 46f497a

	#define VL53L1_RANGESTATUS_RANGE_VALID 0
	/*!<The Range is valid. */
	#define VL53L1_RANGESTATUS_SIGMA_FAIL 1
	/*!<Sigma Fail. */
	#define VL53L1_RANGESTATUS_SIGNAL_FAIL 2
	/*!<Signal fail. */
	#define VL53L1_RANGESTATUS_RANGE_VALID_MIN_RANGE_CLIPPED 3
	/*!<Target is below minimum detection threshold. */
	#define VL53L1_RANGESTATUS_OUTOFBOUNDS_FAIL 4
	/*!<Phase out of valid limits - different to a wrap exit. */
	#define VL53L1_RANGESTATUS_HARDWARE_FAIL 5
	/*!<Hardware fail. */
	#define VL53L1_RANGESTATUS_RANGE_VALID_NO_WRAP_CHECK_FAIL 6
	/*!<The Range is valid but the wraparound check has not been done. */
	#define VL53L1_RANGESTATUS_WRAP_TARGET_FAIL 7
	/*!<Wrapped target - no matching phase in other VCSEL period timing. */
	#define VL53L1_RANGESTATUS_PROCESSING_FAIL 8
	/*!<Internal algo underflow or overflow in lite ranging. */
	#define VL53L1_RANGESTATUS_XTALK_SIGNAL_FAIL 9
	/*!<Specific to lite ranging. */
	#define VL53L1_RANGESTATUS_SYNCRONISATION_INT 10
	/*!<1st interrupt when starting ranging in back to back mode. Ignore data. */
	#define VL53L1_RANGESTATUS_RANGE_VALID_MERGED_PULSE 11
	/*!<All Range ok but object is result of multiple pulses merging together.
	* Used by RQL for merged pulse detection
	*/
	#define VL53L1_RANGESTATUS_TARGET_PRESENT_LACK_OF_SIGNAL 12
	/*!<Used by RQL as different to phase fail. */
	#define VL53L1_RANGESTATUS_MIN_RANGE_FAIL 13
	/*!<User ROI input is not valid e.g. beyond SPAD Array.*/
	#define VL53L1_RANGESTATUS_RANGE_INVALID 14
	/*!<lld returned valid range but negative value ! */
	#define VL53L1_RANGESTATUS_NONE 255
	/*!<No Update. */

[krichardsson]

Sweet!