Allow customization of downloads sort order

[itsananderson]

Enhancement Request

In the EDD User Downloads block, the downloads are sorted alphabetically by product name. It would be useful to be able to use a different sorting algorithm.

Explain your enhancement (please be detailed)

The downloads block seems to use a fixed ksort to order user downloads before rendering them.

Ideally it would be helpful if this order was configurable with a WordPress filter.

Justification or use case

While alphabetical ordering is reasonable for many use cases, it doesn't work for all cases. I sell a Bundle that includes items for each release of a digital product, and I use semver versioning for my release names. Unfortunately, when you sort semver versions alphabetically, you don't always get the correct ordering. For example:

Expected Ordering:

1.0.0
1.0.1
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9
1.0.10

ksort Ordering:

1.0.0
1.0.1
1.0.10
1.0.2
1.0.3
1.0.4
1.0.5
1.0.6
1.0.7
1.0.8
1.0.9

Adding a WordPress filter for the download list would make it possible to choose a custom sorting algorithm. In addition to semver sorting, it would also be possible to sort by publish date or other properties of the download item details.