feat: Add CLI commands: 1) simulate a transaction, 2) query block results

[larry0x]

Description

Closes: #16886

Adds the two following CLI commands:

simd tx simulate /path/to/unsigned-tx.json
simd query block-results [height]

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[julienrbrt]

Can we get a changelog entry under Unreleased Feature?

[larry0x]

Can we get a changelog entry under Unreleased Feature?

Updated changelog

[larry0x]

I think the question is whether the query block-results command is a satisfactory implementation. We serialize the response as json instead of using clientCtx.PrintProto which is a bit dirty. Looking for advice

[tac0turtle]

thank you, the json serialisation looks fine. With other types we end up creating our own type wrapper (

cosmos-sdk/types/result.go

Line 86 in 087a250

func NewResponseResultBlock(res *coretypes.ResultBlock, timestamp string) *cmtproto.Block {

) but i think this is overkill. It provides the ability to add it to grpc

[facundomedica]

utACK, looks good,

[alexanderbez]

utACK