uncompressed pubkeys in wsh is mistakenly allowed

[achow101]

Uncompressed pubkeys are non-standard in segwit, but rust-miniscript is not errorring if an uncompressed pubkey is present in a witness thing (e.g. wsh)

[kiminuo]

@achow101 @apoelstra I have played with this a bit and I have come up with: kiminuo@5fc8aef

Could you have a quick look? Do you have some test case in mind?

[apoelstra]

Sorry @kiminuo, I'm just seeing this now a month later.

Yeah, I like this approach.

[apoelstra]

Should be fixed by #97