Soaring; log, filter reset

Add logging of wind estimate, reset filtered vario rate after climb
Soaring -added ALT_CUTOFF, changed EKF settings

Added SOAR_ALT_CUTOFF parameter after request from Trung Nguyen. This is
the height the motor stops at, and is seperate from the maximum height
thermals will be followed to (SOAR_ALT_MAX). Also changed EKF settings
after flight test experience.
Revert "Soaring -added ALT_CUTOFF, changed EKF settings"

This reverts commit a5623932dcfcaed4d3403256a9851447d610ae47.
Soaring - add ALT_CUTOFF, adjust filter

Added SOAR_ALT_CUTOFF parameter after request from Trung Nguyen. This is
the height the motor will stop running at, and is seperate from the
height that thermals will be followed to (SOAR_ALT_MAX). Also adjusted
fEKF settings after flight testing.