Adds V3 API samples for remote consoles, deferred delete

Adds V3 API samples for remote consoles, deferred delete
extensions. Bundling them together to save on review load

Partially implements blueprint v3-api-unittests
Partially implements blueprint v3-api-specification

Change-Id: I595532d9e1b8eed80336c0258be3e9d07ec7461e
Expose param has_response for _verify_response.

There some actions return nothing. We should support verify
non-return like _verify_delete_response.

Change-Id: If88631f78afe3c9a134b21bdb333f4003040f91b
Add remote-console,deferred-delete metafiles for api samples

Converts remote-console,deferred-delete api sample to
create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: Icaa77b553836e49a4c1bc03bdf124f48bb1901b1
Merge pull request #13 from soulxu/add_metafiles_remote_consoles

Add remote consoles, deferred-delete metafiles for api samples