Port adding column type info to query runners

[jezdez]

883c36b

#23, #152, PR: #173

[alison985]

Note: If this happens without the changes in #454 (specifically getredash#2746 (comment)), then autocomplete will break.

[emtwo]

I think we can put this one on hold since the design might look a bit different and is being discussed here now: #376 (comment)

[alison985]

Thanks for the comment @emtwo. I'm treating this as on hold for now.