Fix versions in BPGenerator

Maven staging job is failing because of common module version set
to 2.0.0-SNAPSHOT. During the build - mvn versions:set is used
which sets version according to version.properties, because common
has different version its version is not changed and it is
recognized as a SNAPSHOT dependency (which fails the jenkins
build).

Issue-ID: DCAEGEN2-2529
Signed-off-by: Remigiusz Janeczek <remigiusz.janeczek@nokia.com>
Change-Id: Icffd3b128485a45b3fe7e19c5501eaa4a98fbcf8