core: Making CommandBase::getParameters()..

core: making CommandBase::getParameters() public

Change-Id: Ib9dc495e97f306025036550b211b0df2bb702e9e
Signed-off-by: Eli Mesika <emesika@redhat.com>
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=872719