Optimize general graphql queries

[arboleya]

During some load tests, we realized a couple of issues (#3279, #3277) that we're fixing and optimizing.

In keeping with this theme, we should continue the effort and review our predefined GQL queries and fragments.

Every field removal is a breaking change and can break things for apps, so we need to be extra careful here.

Taking from the providers/operations.graphql:

• getVersion
• getNodeInfo
• getChain
• getLatestGasPrice
• estimateGasPrice
• estimatePredicates

[maschad]

Took a look at this and the queries don't look like they could be optimized further. Most of these are relatively simple queries.

"""
from fuel-core-schema.gql
"""

type NodeInfo {
  utxoValidation: Boolean!
  vmBacktrace: Boolean!
  maxTx: U64!
  maxDepth: U64!
  nodeVersion: String!
  peers: [PeerInfo!]!
}

"""
  Estimate the predicate gas for the provided transaction
  """
  estimatePredicates(tx: HexString!): Transaction!

"""
from operations.graphql
"""
# Queries and Mutations
query getVersion {
  nodeInfo {
    nodeVersion
  }
}

fragment nodeInfoFragment on NodeInfo {
  utxoValidation
  vmBacktrace
  maxTx
  maxDepth
  nodeVersion
}

query getNodeInfo {
  nodeInfo {
    ...nodeInfoFragment
  }
}

fragment chainInfoFragment on ChainInfo {
  name
  latestBlock {
    ...blockFragment
  }
  daHeight
  consensusParameters {
    ...consensusParametersFragment
  }
}

query getChain {
  chain {
    ...chainInfoFragment
  }
}

query getLatestGasPrice {
  latestGasPrice {
    gasPrice
  }
}

query estimateGasPrice($blockHorizon: U32!) {
  estimateGasPrice(blockHorizon: $blockHorizon) {
    gasPrice
  }
}


query estimatePredicates($encodedTransaction: HexString!) {
  estimatePredicates(tx: $encodedTransaction) {
    ...transactionEstimatePredicatesFragment
  }
}


fragment transactionEstimatePredicatesFragment on Transaction {
  inputs {
    ...inputEstimatePredicatesFragment
  }
}


fragment inputEstimatePredicatesFragment on Input {
  ... on InputCoin {
    predicateGasUsed
  }
  ... on InputMessage {
    predicateGasUsed
  }
}

All the data queried via these queries is utilized in the places where the queries are used, so there's no place for more optimization.