BinEditor: Fix selection on find

Selection includes one extra byte

Change-Id: I3a801764b009edbf19b8182bb9e645ee49e319d1
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
BinEditor: Support wrapping on find

Change-Id: I7a87908d084208ac1d975d0686905cd3412e120f
Reviewed-by: hjk <hjk121@nokiamail.com>