[Bug 42070] Add "workaround" to defined keywords list to indicate that one or more workarounds are available for a bug.

https://bugs.winehq.org/show_bug.cgi?id=42070

--- Comment #3 from Rosanne DiMesio  ---
I see little benefit to users. Workarounds should be documented in each
relevant AppDB entry; users shouldn't have to come to bugzilla at all to find
them.

I am also concerned that adding a workaround keyword will send the unintended
message that bugzilla is the "official" place to discuss workarounds, and if
that happens, users will naturally expect to have questions about how to apply
those workarounds (What's winetricks? How do I change the Windows version in
winecfg?) answered here rather than on the forum.