add utils.SafeSendCoins()

[assafmo]

didn't change tests and past upgrade handlers

[sampocs]

looks good!

I'm wondering if it would make more sense to just parameterize safe send coins with a checkBlockedAddr bool so that we could use it for every SendCoins instance instead of having to add the comment that says why we didn't use it

[assafmo]

Good point. I'm not sure if it'll be more readable tho, from the outside it'll just be true/false. I'll do it and see how it looks.

Also, wdyt about adding a ci job to check that we're not using SendCoins anywhere in the future?

[sampocs]

Ooo CI job is a great idea! (assuming we stick with the switch to using SafeSend everywhere)

[assafmo]

Yeah with the switch.

[sampocs]

Looks good! one last request - I would revert the test files and change the CI job to ignore test files. I think it's fine to use the bank one for those since we want them to be as non-verbose as possible