PVS V739: EOF compared with a value of the char type.

Change-Id: Icfaff590359381fbdd3bbd7993dab92111da3ed1
Reviewed-on: https://review.haiku-os.org/c/1618
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Move SettingsHandler to libshared

It's used by both Tracker and Codycam and others might find it useful.

Change-Id: I585d3a1bdc7f8fce7d36bedf6867464cd541ba2e
Reviewed-on: https://review.haiku-os.org/c/1637
Reviewed-by: waddlesplash <waddlesplash@gmail.com>