Added rpi_navio launch file.

Cleaned up slightly.

Again reconfigured descent region for wide allowable descent.

Housekeeping.

Changed structure so gimbal controller launches april tag. Changed descent region.

Removed references to whycon, cleaned up landing control policy a bit.

Changed apriltag3 callback to recognize all bundles with "landing_pad" in the name. Also corrected APPROACH to be purely planar.

Track landing pad with drone yaw until below a certain altitude and only above a certain pixel displacement.

Now the descent is a bit smoother.

Changed for position_target_enu update in apriltag_ros.

Working with apriltag3 now.

Changed launch file install location.

Set up for clean use with Jetson Nano.

Removed commented code.

Cleaned up for positional targeting instead of velocity targeting.