[Feature Request] Add support for UBX ESF-RESETALG

[PaulZC]

Based on:

sparkfun/SparkFun_u-blox_GNSS_Arduino_Library#203 (comment)

Tagging @cturvey , @Eric-FR

[PaulZC]

I should have looked at this before now...

The library already has a function to reset the IMU mount alignment: resetIMUalignment

SparkFun_u-blox_GNSS_v3/src/u-blox_GNSS.cpp

Lines 8564 to 8574 in 05eea98

	// Reset ESF automatic IMU-mount alignment
	bool DevUBLOXGNSS::resetIMUalignment(uint16_t maxWait)
	{
	packetCfg.cls = UBX_CLASS_ESF;
	packetCfg.id = UBX_ESF_RESETALG;
	packetCfg.len = 0;
	packetCfg.startingSpot = 0;
	// This is a special case as we are only expecting an ACK but this is not a CFG message
	return (sendCommand(&packetCfg, maxWait, true) == SFE_UBLOX_STATUS_DATA_SENT); // We are only expecting an ACK
	}

I'm closing this as "Done"...