AP_VisualOdom: support align-position-and-yaw #23911
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This enhances the AP_VisualOdom and GCS_MAVLink libraries to support the new align-vision-position-local-ned message which allows a user to align (aka "reset") the position provided by an external vision system (e.g. T265, ModalAI VOXL) to a known position expressed as an offset from the EKF origin.
This is important because these two systems use VIO which may drift during flight any where from a few cm to up to a couple of meters.
This has been tested in SITL and on a real vehicle using a ModalAI VOXL camera.
Note: this PR includes a commit to update the mavlink module to include PR ArduPilot/mavlink#319. This commit should be removed before merging.