Make notes rates available to QML through the Backend interface.
Remove the corresponding variables from plannerShared.
Getters are from prefs. while setters are linked to diveplan model.
Remark: signals from qPrefDivePlanner is used, because the diveplanner model
sets qPrefDivePlanner but do not issue special signals.
Signed-off-by: jan Iversen <jan@casacondor.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
b0e46c208d