The improvementst to Indexer for Explorer in 2021-Q3 [draft]

[frol]

Indexer for Explorer is part of the Node Interfaces team's responsibility, and we are discussing our focus for 2021-Q3. Let us know if you champion certain features that are not part of the current OKRs draft!

https://docs.google.com/document/d/1ymULatS5yj5ECguNyILS-76_WUyKcgyI1EuEV8lPmxk/edit?usp=sharing

1. Balance changing events (validator-related, vesting, native balances) are documented (account state changes, lockups, circulating supply)
2. NEP-standardized (FT, NFT) events are efficiently accessible to the Wallet-like project developers (e.g. through dedicated indexer)
3. Indexer for Explorer addresses the problem of transaction hash collisions for end-parties
4. Streaming Indexer is available to the early adopters [aspirational]