Adding Deques
I wanted to build out a few data structures that are relatively easy to get out. This is one of them.
Just going to comment that I don't know how I closed this a moment ago. I think I accidentally used a strange key-sequence or something that caused that.
Sorry for the radio silence. For now I think we should hold off merging this PR (alongside with other new collection PR's #293 and #295), because we already have some performance issues with our existing linear collections; and having even more collections built on top of them would not solve that.
Once we get their performance right, we should take another look at these PR's, so we can merge them more confidently of their usefulness.
Dude I agree. Let's do things right and try to only keep solid stuff in the codebase.