setup: include "number of confirmations required for test transaction" in info message

[billygarrison]

As mentioned in #8, the display message waiting for transaction doesn't give a lot of information.

OP @matthiasdebernardini suggested:

perhaps change 'waiting for transaction' to 'waiting for your transaction to be confirmed by the blockchain (minutes or hours depending on available blockspace)'

How many confirmations does coldcore require for the transaction? I suggest including that number in the info message - my test transaction has been stuck at waiting for transaction for over 30 minutes and it has two confirmations.

[billygarrison]

Closing for same reason as #26... sorry about the mixup.

I goofed and didn't properly copy the new test address, so my "test" transaction went to the wrong address