Add a Sequence.sort() method?

[ChayimFriedman2]

Sorting is really required. We can have a method in Sequence that sorts the sequence, or a method in List that sorts it in-place, or both (both!)

There are number of design choices:

1. Should the sort be stable? (We can provide both, but that seems unnecessary. I think most scripting languages just have stable sort - JS, Python, ...)
2. Should we provide in-place sort (possible only for lists), or not in-place (can be general in Sequence)? As I said, it seems reasonable to have both (Python does that - it has both list.sort() (in-place) and sorted() (not)).

[ruby0x1]

there's some wip stuff here already. #802

[ChayimFriedman2]

I haven't search the PRs, just the issues 😄