The YieldCollected event is emitted with scaled amounts values

The issue is identified in the [collectFeeOrYield](https://github.com/nutsfinance/tapio-eth/blob/b86b15b6f0e9f5e90052ceaba0b4a84375af0a55/contracts/StableAsset.sol#L1076-L1086) function of the StableAsset contract.

The YieldCollected event uses scaled amounts values. These values are not divided by the corresponding entries in the precisions array, complicating the interpretation of the data.