Add Regression Test For Package Cloning (#2949)
Add Regression Test For Package Cloning (#2949)

Former bug in Porch where directory path from which a package was being
cloned could not have leading forward slash has already begin fixed;
adding test case for it.
GoogleContainerTools/kpt,GoogleContainerTools/kpt,GoogleContainerTools/kpt,GoogleContainerTools/kpt,GoogleContainerTools/kpt