This submission adds three methods to
rally/benchmark/scenarios/nova/utils.py
1) def create_keypair
2) def list_keypairs
3) def delete_keypair
Adds new file test_keypairs.py for nova
keypair scenarios
Added configuration files for keypair operations under
samples/tasks/scenarios/nova
1) create-and-list-keypairs.json
2) create-and-list-keypairs.yaml
3) create-and-delete-keypair.json
4) create-and-delete-keypair.yaml
5) boot-and-delete-server-with-keypairs.json
6) boot-and-delete-server-with-keypairs.yaml
Added unittests to test_utils.py and test_keypairs.py under
tests/unit/benchmark/scenarios/nova
Change-Id: Ic90d94d3dc925a9f225f760bfc550bf3e82e80b8