This reverts commit 699b6a2c.

* fix VTOL vehicle_status timestamp

* run astyle

The mission feasability checker was called with the same arguments
twice which made it hard to understand when a mission is marked valid.

The mission check should run in these two cases:
- When initializing (if home comes up) if there is already a mission saved.
- When the mission gets updated.

Navigator: Initialize subscription and disallow copy constructors for classes that have pointer members

This brings support for the Ak8963 for Bebop.

Fix missing orb_unadvertise on shutdown
Fix missing closing of file descriptors

Since we're already filtering the incoming gyro and accel sensor
signals, we don't need to filter the output rates again.

We should not spam the console just because the input data is
degenerate, it would only make things worse because everything would
slow down due to the printfs.

Since accel and gyro are not filtered in the drivers anymore, we need to
filter them in this estimator in order to achieve a similar performance.

Opening/seeking/closing the file for each data chunk was extremely
expensive and drastically slowed the download process as the position
in the file increased. Over USB with large files this change + nuttx
update results in ~ 10x speedup for log downloads.