Add BTC fee customization

[muneeb-ali]

I've seen users of the wallet complain about high BTC transaction fees. The currently algorithm might be too careful in picking high fees. Is there a way to let people customize their fee?

I understand that Stacks 1.0 wallet will get deprecated soon with launch of Stacks 2.0 but in the coming months there might a bunch of activity around moving STX and with the increase in BTC price and network congestion the issue is becoming more painful than before.

Here is a related issue: hirosystems/stacks.js#498 (comment)

[fluidvoice]

I tried building the wallet once (Linux binaries) on Linux but it failed to build. I think I saw this is fixed now though. If I can get it to build I'll try applying that fee estimation monkey-patch.

[fluidvoice]

I built the Linux binaries again on a fresh Ubuntu 19.10 VM but none of the resultant binaries would run, they all core dumped. So It's not worth spending more time on I think. Will just wait for 2.0 and :
2.0 wallet sweep issue

[markmhendrickson]

I'm closing this out now that Stacks 2.0 has launched and BTC is no longer required for STX transactions.

Download new wallet here: https://www.hiro.so/wallet/install-desktop