Create manual commands when AutoCLI falls short

[julienrbrt]

AutoCLI doesn't support multiple slices arguments.
While the commands works, you would be able to only provide one variadic argument for one field
(the last one).

In order to ensure the best UX, we should scaffold a manual command when there's two slices fields in a message.

ref: #4624 (comment) / #4624

[Pantani]

I was working on this issue, but I realized we need to roll back more than 10 files to add the manual command if we have multiple slice arguments. Is there any way to serialize it as JSON? eg: marsd tx mars send-salary bob '["300stake", "300token", "100atom"]'

[Pantani]

The only problem is having more than one slice of coin. Multiple numbers or string slices work

[julienrbrt]

Should we simply print a warning instead? Less boilerplate is indeed better yeah.

[julienrbrt]

eg: marsd tx mars send-salary bob '["300stake", "300token", "100atom"]'

We need to override the coin slice handler in client/v2 in the scaffolded app. However, maybe it is overkills to do that and we should just close and document the behavior.

[Pantani]

I was thinking about wrapping the coin slice into another struct and using it as a JSON, but maybe it's too messy