Catch NotImplementedError in get_spice_console in v2/v3 API

Currently get_spice_console doesn't catch NotImpelementedError
and it will lead to inaccurate information returned back
to API caller. This patch adds the catch exception routine and
returns a HTTPNotImplemented excpetion.

Closes-Bug: #1279195
Change-Id: I16cb0a83c0e1aa9a041dd21af324a39388ca3bb8
Merge "Catch NotImplementedError in get_spice_console in v2/v3 API"