Allow successful queries if one of the configured peers is down

[arner]

When doing a fabric.ChaincodeQuery with WithEndorsersFromMyOrg, the FSC queries all configured peers of the own organization. On any query, it validates if all responses match:

fabric-smart-client/platform/fabric/core/generic/chaincode/invoke.go

Line 119 in 110f632

func (i *Invoke) query() ([]byte, error) {

In some situations this may be important (i.e. querying other orgs, not trusting all own peers). But sometimes availibility should be considered more important than the integrity. For example: I have three peers in my organization and I want to update one. The client should still be able to query (and invoke).

Perhaps it would be worthwhile to have a flag to 'trust any response' and it would just take the first of all the responses that has a valid payload?