Feature request: Add SkinBid as a market

[andruszkow]

SkinBid as a market is pretty close to buff prices. Would be nice to have them in the extension

[gergelyszabo94]

Perhaps in the future, right now it would be pretty useless as it has way too few listed items, most items would have no price.
Example: I typed in a random knife name and none are listed.
Not one in FT, MW, BS, etc. Let alone ST ones.