Allow to set up Cloudooo scripting.
The enable-scripting parameter allows to specify a LibreOffice script
to be applied before saving the document, as per
cloudooo@a09d87af.
If false (the default), an exception will be raised instead.
This is also enabled as ooo_enable_scripting in the
generic.cloudooo recipe.
This also adds two SlapOS integration tests classes to test the functionality:
- TestScripting requests an instance with scripting enabled, and tests the scripting functionality.
- TestScriptingDisabled tests that scripting fails if it is not enabled explicitly.