add testcase to improve test coverage

. add distribution parameter test case
. remove unused FileSystem plugin
. fix pom.xml of package to include forwarding plugin

Change-Id: I531169dd4cb498ae50e4f2ef93fe3a3eecd33263
Issue-ID: MULTICLOUD-569
Signed-off-by: liboNet <libo.zhu@intel.com>
25 files changed