feat(inputs): Add Mavlink input plugin

[chrisdalke]

Summary

Add a Mavlink input plugin.

The mavlink plugin connects to a MavLink-compatible flight controller such as as ArduPilot or PX4. and translates all incoming messages into metrics.

The purpose of this plugin is to allow Telegraf to be used to ingest live flight metrics from unmanned systems (drones, planes, boats, etc.)

Telegraf is already often used on flight computers (eg a Raspberry Pi) to collect system metrics for drones and it would be valuable to extend this to also provide a convenient way to record flight telemetry.

TODO

• gomavlib is currently on a fork to support reading serial ports on i386 and darwin. Will need to upstream the fix for this and move back to the main repo after merge, or before merge if the forked gomavlib is not acceptable

Checklist

• No AI generated code was used in this PR

Related issues

• Resolves feat(inputs): Add Mavlink input plugin #16220

[telegraf-tiger]

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Artifact URLs

DEB	RPM	TAR GZ	ZIP
amd64.deb	aarch64.rpm	darwin_amd64.tar.gz	windows_amd64.zip
arm64.deb	armel.rpm	darwin_arm64.tar.gz	windows_arm64.zip
armel.deb	armv6hl.rpm	freebsd_amd64.tar.gz	windows_i386.zip
armhf.deb	i386.rpm	freebsd_armv7.tar.gz
i386.deb	ppc64le.rpm	freebsd_i386.tar.gz
mips.deb	riscv64.rpm	linux_amd64.tar.gz
mipsel.deb	s390x.rpm	linux_arm64.tar.gz
ppc64el.deb	x86_64.rpm	linux_armel.tar.gz
riscv64.deb		linux_armhf.tar.gz
s390x.deb		linux_i386.tar.gz
		linux_mips.tar.gz
		linux_mipsel.tar.gz
		linux_ppc64le.tar.gz
		linux_riscv64.tar.gz
		linux_s390x.tar.gz