testutils: identity: support v3/users/{user_id}/projects
testutils: identity: support v3/users/{user_id}/projects

Support the GET method for getting the project list for the one user
we support.

Signed-off-by: Kristen Carlson Accardi <047ff8258f0113ece56e5e2fe9e0d987b14c4333@linux.intel.com>

leoswaldo/ciao,mrkz/ciao,obedmr/ciao,tpepper/ciao,ciao-project/ciao,leoswaldo/ciao,matthewrsj/ciao,mcastelino/ciao,jorgevgut/ciao,rbradford/ciao,mrkz/ciao,kaccardi/ciao,erick0z/ciao,wcwxyz/ciao,rbradford/ciao,erick0z/ciao,jorgevgut/ciao,markdryan/ciao,mcastelino/ciao,wcwxyz/ciao,matthewrsj/ciao,ciao-project/ciao,mrkz/ciao,mcastelino/ciao,matthewrsj/ciao,wcwxyz/ciao,obedmr/ciao,tpepper/ciao,kaccardi/ciao,erick0z/ciao,tpepper/ciao,jorgevgut/ciao,01org/ciao,obedmr/ciao,01org/ciao,leoswaldo/ciao,markdryan/ciao