Normalize line endings to CRLF

There's already a lot of fighting going on in this repository regarding the line endings of the code. Thus, this branch attempts to normalize file line endings, and also lock it to persistently be CRLF (using .gitattributes, to be set up later).

Aside from this, I'm proposing that we begin rejecting (or at least request changes to) merge requests that attempt to change the line endings of a file.

Since it's a bit of a big change, I'll run it through this process than BOLDly making the changes. This way, if there are any objections, anyone can provide their thoughts accordingly.