Since novaclient has support to list extensions, we should add
some of the logic to our list extensions command.
Closes-Bug: #1337684
Change-Id: I3074225780142df265a34add03e60c0f7c64c711
- Add support in the common section for extension list. This only
supports Identity for now. Once the APIs for volume and compute
are supported in the respective APIs, they will be added. Once
network is added to this client, it will be added (the API already
supports it).
- Include extension fakes for volume and compute for pre-enablement.
Change-Id: Iebb0156a779887d2ab06488a2a27b70b56369376
Closes-Bug: #1319115
