Outdoor Estimation/Control

[mmmfarrell]

Flew waypoints outdoors.

To merge this in a few things need to happen:

• [x] Fly waypoints with motion capture (To make sure we didn't screw anything up along the way)
• [ ] Fix altitude estimation (Compensate for pressure change due to prop spin up & temperature change)
• [ ] Test outdoors with poor heading initialization (face UAV south at start)

Then we should note which commit of rosflight was used during the flight testing and which commit of rosflight_plugins was used for gazebo simulation and maybe make a release

[mmmfarrell]

This was flown in gazebo simulation with this specific rosflight_plugins commit see rosflight_plugins PR #17