OpenCRVS advanced search doesn't allow paginating external API's

[naftis]

Currently, our develop branch has a pagination that is based on core's advanced search. This is a mistake, as core doesn't allow paginating external API's. The way we did pagination earlier should work fine. There's 2 ways to fix:

1. Paginate in dci-crvs-api
2. Allow paginating external API's in core (I'd prefer this)

[naftis]

Proposed fix in opencrvs/opencrvs-core#6249