Create a manifest feature and filter for connectors

[luizstacio]

Current an Connector like EVM or Bako don't support couple of features, most important signMessage these creates some flows for apps that require this feature.

For this the idea is to create a new RFC that would allow applications to filter connectors by what features they support.

• Addition to Connector data

manifest: {
  signMessage: false,
  sendTransaction: true,
  ....
}

• Addition to fuel.connectors

// Add a filter configuration params for filtering connectors by required features
fuel.connectors({
  signMessage: true,
  sendTransaction: true
})