UAVObjectUtilManager: only attempt to set meta for present settings

Setting all the meta data with timeouts takes a LONG time. This
only sends the ones that are present. To avoid this disable
session management.
GCS/Calibration: do not double set the other data rates

The newer code takes a minute to set all the object data
rates (becaues of timeouts on objects not present).
Calibration works well by just setting the data rate
of the desired objects.
GCS/Calibration: wait up to 15 seconds to set metadata

This verifies that the sensor metadata rates are correct
before continuing with calibration.
GCS/Calibration: only set metadata for sensors

It takes more time to restore all the settings for the
other data than the slow down from having more data slowing
the sensor updates.