add rpc support for qapi.how #154
Description
https://qapi.how is the published deployment of https://github.com/grenade/qapi-console, a fork of https://github.com/polkadot-api/papi-console, supporting chains that implement post-quantum signature schemes and ignoring chains that implement only pre-quantum signature schemes.
- papi-console makes use of substrate chainHead_v1_* rpc methods that depend on finality being established within only a few blocks.
- qapi-console makes use of chain specific rpc methods that mirror chainHead_v1_* signatures, but utilise chain specific implementations that handle finality according to that chain's configuration. as such it is capable of supporting resonance/quantus finality gaps of 180 blocks.