[Feature Request] Pull price from sale history

[HawkAtreides]

In line with the issue raised in #46, I would like to request the ability to pull a price from the sale history of an item if opened as well as from the current prices. The most likely use case would be to copy the most recent price that otherwise fits the criteria given in other options (i.e., if HQ prices are requested, it will pull the appropriate HQ price). A toggle between latest and least may be a further improvement to this feature.