Set time zone on scope instead of only collections

[joente]

Is your feature request related to a problem? Please describe.
It would be nice if the time zone for the @thingsdb scope and @node scope could also be changed.
The default time zone for a new collection could then be inherited from the @thingsdb scope.

Describe the solution you'd like
Accept a scope as argument instead of a collection. A collection name (or id) could still be accepted as fallback.

For example:

set_time_zone('//stuff', 'Europe/Kiev');

Describe alternatives you've considered
I've had some doubt about the inheritance part as we could also create new collections with fixed values. Inheriting from the @thingsdb scope allows for creating "defaults" which could be useful.

[joente]

Implemented in v1.2.0