Implement a new API to claim all calibnet tokens

[sudo-shashank]

Summary

We implemented a claim_token API that allows users to claim either Calibnet tFIL or tUSDFC. Based on user feedback, there is now a request for an additional API endpoint that enables claiming all Calibnet tokens in a single call for a given address.
A proposed solution is to introduce a new /api/claim_token_all endpoint, which would internally call claim_token for both CalibnetUSDFC and CalibnetFIL.

• This endpoint will only take an address as input.
• The endpoint should still use the same limits as the regular faucet (so user can't provide their own faucet settings...)

Additional Links & Resources

This is a request from Jennifer Wang