Add functionality of getting places as an iterator in cht-datasource

[sugat009]

Is your feature request related to a problem? Please describe.

This feature is part of a bigger feature of the creation of API endpoints for getting contacts by type. (https://github.com/medic/cht-core/issues/9193) The target of this feature is to have the functionality of getting places using cht-datasource as an AsyncIterator or something similar that can fetch data in batches.

Describe the solution you'd like

Place.v1.getAllAsync();

Describe alternatives you've considered

Additional context