Clean application role mocked artifacts directories

Directories created by Molecule tests were left in
files tree and not cleaned up. This patch adds a task
to shred them after test invocation.

Change-Id: If745cfc45de2f73db5be1696a16a185ff2a625bf
Issue-ID: OOM-1910
Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
4 files changed