remove unused network module from certificates api extension

Closes-Bug: 1240823

Change-Id: I5d37a7bc9ac0ede079feebc4121d3585de44d8bd
WIP: Create metafiles for API v3 samples

Create metafiles for the API v3 samples which can be used to
help automate the generation of specification documentation for
the v3 API

Adds the infrastructure for creating the meta files plus adds
the changes for hosts extension

Partially implements blueprint v3-api-specification

Change-Id: Ie443931ea6bb49fbf2848f2223d0e47436005c8f
Adds os-agents metafiles for api samples

Converts os-agents api sample to create meta files for api sample docs.
We use this to auto generate the specification document
Adds os-migrations metafiles for api samples

Converts os-migrations api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: I253fce5d713ee55307429a952103bec96a77383f
Adds os-aggregates metafiles for api samples

Converts os-aggregates api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: I171b28870f98afe2245ce5a9cc1cbe7163ab4ab7
Adds os-certificates metafiles for api samples

Converts os-certificates api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: Idaf6a2e20b29b3a03db197e263909cc423a3363c
Adds flavor_access metafiles for api samples

Converts flavor_access api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: Idd61e4d9bb6f063914dbc40c9bb04dff60d0c567
Add metafiles for quota-sets/classes,instance-usage-audit-log

Converts quota-sets, quota-classes, instance-usage-audit-log
api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: Ib5f4b64281db6a17914a97da3cdab930e6276bd5
Adds evacuate,ext-avail-zone,ext-ser-attrs metafiles for api samples

Converts evacuate,extended-available-zone,extended-servers-attributes
api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: Ie6f0e198b1d090fdec7a3a084889dfef6681d13e
Adds ext-status,hypervisors,admin-actions metafiles for api samples

Converts extended-status, hypervisors, admin-actions api sample to
create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: I825a6c623e7982b544fd4b616e17ab5335403bd8
Add instance-actions,flavors,flavor-rxtx metafiles for api-samples

Converts instance-actions,flavors,flavor-rxtx api sample to create
meta files for api sample docs.
We use this to auto generate the specification document.

And add 'extension_name' for flavors api samples to ensure generating
'extenion' attribute in metafiles.

Change-Id: Icace5d17666cdbf29310119bc96d20335092b87e
Add flavor-manage,flavor-extra-specs metafiles for api samples

Converts flavor-manage,flavor-extra-specs api sample to create
meta files for api sample docs.
We use this to auto generate the specification document.

Change-Id: I68eceaeb56a6dad82a17191e5f9a6a706c518cd9
Add metafiles for cells, multinic

Converts cells, multinic api sample to create meta files
for api sample docs. We use this to auto generate the
specification document.

Change-Id: Ia8f597d42661deff8e50424500581abdc4f677dd
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
Add V3 API samples for config-drive

Partially implements bp v3-api-extension-versioning

Change-Id: Id589ddced8c30089bacbb3eca81d4b9238901a91
Add config-drive metafile for api sample

Converts config-drive api sample to create meta files for api sample docs.
We use this to auto generate the specification document

Change-Id: I4856552df0b88d0a0adbefb5cbb56a2e12347695
Add limits,simple-tenant-usage metafiles for api samples

Converts limits,simple-tenant-usage api sample to create meta
files for api sample docs. We use this to auto generate the
specification document.

Change-Id: Ibecfe8c28d78a9c23edd9b9512d84fe5db29e37b
Add server-usage metafiles for api samples

Converts server-usage api sample to create meta files for api sample docs.
We use this to auto generate the specification document.

Change-Id: I91c47205fe824e29622a961c5232f314c77e17ac
Rename of _verify_delete_response to _verify_no_response

Renames _verify_delete_response to _verify_no_response and fixes up
various testcases to use _verify_no_response intead of verify_delete_response
or has_response.
Add server-diagnostics metafile for api samples

Converts server-diagnostics api sample to create metafiles for
api sample docs. We use this to auto generate the specification
document.

Change-Id: I740aa597bab199d7571186c47ea15e31f960791e