 Add a collection of Amounts to a MixedAmount, normalising the result.
maAddAmounts :: Foldable t => MixedAmount -> t Amount -> MixedAmount
maAddAmounts = foldl' maAddAmount

--
maAddAmounts :: Foldable t => MixedAmount -> t Amount -> MixedAmount
maAddAmounts = foldl' maAddAmount
maAddAmounts = foldl' maAddAmount