Support Pagination

[tiagonbotelho]

Hello 👋 ,

It seems that the RPC API exposes cursors for both EntityResult and QueryResultBatch but we seem to be discarding them here.

Ofc, that alone wouldn't be enough to add pagination support. Diplomat.Query would also need to support that functionality.

Are there any plans to support pagination when fetching a batch of Entities?

Thank you!

[tiagonbotelho]

Started working on adding pagination support on #50 😊 A review would be much appreciated!