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
Merge "Adds V3 API samples for remote consoles, deferred delete"