This change adds the configuration of the following new networks:
- Hedera new testnet and mainnet
- Injective inEVM tesntet and mainnet
- IDEX xChain testnet
It also updates the ethereum sdk README to outline Hedera special
behaviour around update fees.
We have deployed new Pyth contracts on testnets using the stable
feeds and users no longer need to use hermes-beta in many networks.
This change updates the mentions to them.
Ali Behjati
Daniel Chew
Jayant Krishnamurthy