Also fixed:
* Tree structure of all other default Drive folders
* `data-generator -l` not waiting until the server is back up
* data generation for non-OXaaS setups
  * added generator settings `oxLogin` and `email`
* remote data generation
  * added environment variable SSH_COMMAND
* in-place execution of `data-generator` wrapper
  * added environment variable CLASSPATH

TODO: clarify the difference between uid and OX login.

Added checks for the presence of old calendar tables because they were
removed in 7.10.3.

Added SQL type 'varbinary'.

Buster

See merge request qa/performance!2