Zilliqa chain type: support for ZRC-2

[NikitaSavik]

Related to PR - blockscout/blockscout#13443

1. add "ZRC-2" token type in tags and filters
2. add a new ZRC-2 address field on the token page which can be taken from the /api/v2/tokens/:address_hash_param endpoint

[isstuev]

on pause, api pr is still in review