[bitcoin/bitcoin] [WIP] appveyor: Run functional test on appveyor (#14007)

You can view, comment on, or merge this pull request online at:

https://github.com/bitcoin/bitcoin/pull/14007

— Commit Summary —

* Run functional test on appveyor

— File Changes —

M appveyor.yml (26)
M test/functional/test_runner.py (5)

— Patch Links —

https://github.com/bitcoin/bitcoin/pull/14007.patch
https://github.com/bitcoin/bitcoin/pull/14007.diff