complete functional tests for all URLs (old and new)

### Description
New URLs.
Added an alternative path for ALL requests.
What was '/ngsi9/XXX' is now also '/v1/registry/XXX'.
What was /ngsi10/XXX' is now also '/v1/XXX'.
Also the administrative requests /log, /statistics, /version, etc have been added a path '/v1/admin/'.

All paths, new and old tested in 4 new functional tests.
All old functional tests should now use /v1/* instead of /ngsi9/* and /ngsi10/*. A few functional tests have been converter, but just a few ...

The right operation should be `GET /version`, not `GET /v1/version`. The idea is that (in the future), version operation could evolve to include information about any version token that Orion may implement (/v1, /v2, etc.) and, in this sense, shouldn't be tied to any specific version token in the URL.