Introduce developer tool.

Supports dump binary content, run operation and update existing
binary with new installer base. The support for starting with
binary data of a different installer got dropped completely, use
update and run instead.

Change-Id: I41073d0bfc9a4c4da18fbb9f49fd3e65bb54b501
Reviewed-by: Kai Koehne <kai.koehne@digia.com>