GreatVoyage-v4.7.3(Chilon)
## Notice Non-mandatory upgrade ## New Features ### Core - [TIP-586](https://github.com/tronprotocol/tips/blob/master/tip-586.md) Add gRPC interfaces for resource price query (#5412). - `GetBandwidthPrices` - `GetEnergyPrices` - `GetMemoFee` - [TIP-592](https://github.com/tronpro…