Port fping extension to v3 API Part 1

This changeset only copies the v2 files (implementation and test)
into the appropriate v3 directories unchanged. The copy as-is
will not be loaded by either the v2 or v3 extension loaders. The
second changeset will then make the changes required for it to
work as a v3 extension.

This is being done in order to make reviewing of extension porting
easier as gerrit will display only what is actually changed for v3
rather than entirely new files

Partially implements blueprint nova-v3-api

Change-Id: I55d15ab5f9f59a83dc67bac2d2f41ceee06085d5
Port coverage API into v3 part1

This changeset only copies the v2 files into the appropriate v3
directories unchanged. The copy as-is will not be loaded by either
the v2 or v3 extension loaders. The second changeset will then
make the changes required for it to work as a v3 extension.

This is being tried in order to make reviewing of extension
porting easier as gerrit will display only what is actually
changed for v3 rather than entirely new files.

Partially implements bp v3-api-extension-versioning

Change-Id: I50ba45357378311d7bccb71f851e9e2915fc763b
Imported Translations from Transifex

Change-Id: I565654bd20d90aceba2b0a5be6467dac9a9fb965
Merge "Imported Translations from Transifex"
Merge "Port coverage API into v3 part1"
Merge "Port fping extension to v3 API Part 1"
Merge remote-tracking branch 'm_src_repo/citrix-fixes' into build-temp