Subtract fee from amount

[sefbkn]

trafficstars

Closes https://github.com/decred/dcrwallet/issues/1311 References https://github.com/decred/dcrd/pull/1530

Add option to subtract fee from single, non-change output.

[chappjc]

This would be a nice option. If it's still conceptually alright by jrick I expect you'll need to resolve a couple years of conflicts @sefbkn

[jrick]

Yes, this is still a desired feature.

[sefbkn]

This would be a nice option. If it's still conceptually alright by jrick I expect you'll need to resolve a couple years of conflicts @sefbkn

Alright, no problem.

[jholdstock]

Would also like to see this feature :+1: