Bug 564324 - Add support for migrating zipped amxmi files

Avoid unzip for extraction of model version and lazily unzip for
migration only.

Change-Id: I7cfad4602a6b63cf3aa4969cf528cd51a8e8e5b3
Signed-off-by: Dirk Fauth <dirk.fauth@de.bosch.com>
8 files changed