Make it easier to reuse quasiquote for other record implementations

[aavogt]

Hi Nikita,

I have a fork https://github.com/aavogt/record that generates HList records instead of tuples. I just had to replace renderRecordType and renderRecordExp. Would you be open to rearranging things such that Record.hs (or another module) exports

mkRecordQQ :: ([(Text, ExpQ)] -> ExpQ)
  -> ([(Text, TypeQ)] -> TypeQ)
  -> QuasiQuoter

such that you define record = mkRecordQQ renderRecordExp renderRecordType

Regards,
Adam