Migrate orchestration API tests to resource_* fixtures

Partially-implements bp resource-cleanup

Change-Id: I58b5f9f17d166c762a1091f4ecb2c560bff8e977
Migrate queuing API tests to resource_* fixtures

Partially-implements bp resource-cleanup

Change-Id: I5c2773e1e0d475dcbd77007121a33ae06a436c22
Merge "Migrate orchestration API tests to resource_* fixtures"
Merge "Migrate queuing API tests to resource_* fixtures"