check:construction improvements

[AlanVerbner]

Is your feature request related to a problem? Please describe.

We would like to run check:construction in our CI server and it would be great to have some extra features that will make it easier for us.

Describe the solution you'd like

1. Run N amount of transfers. It might be good enough to just run a couple fo transfers to check everything is fine, not to run it until the funds are drained (I mean, there is no more to pay for the fees)
2. Be able to define an address where the funds will be returned (so we don't drain test wallets.

Describe alternatives you've considered

re 2 we might use change_scenario, will that work?

Additional context

We will likely run this using github actions

[patrick-ogrady]

Thanks for posting this @AlanVerbner! We've been tracking check:construction improvements here: #112.

We already planned on (1), however, hadn't planned on (2). I added it to the scoped work.