5.2.0

Summary:

• Performance of WrapText was increased (about 1/2 allocations, and 1/3 execution time), and more unit tests were added for WrapText.
• Added LineSplitEnumerator, and SpaceSplitEnumerator, from https://www.meziantou.net/split-a-string-into-lines-without-allocation.htm, to support new WrapText method; they're public, in case you happen to want to use them, yourself.

Context:

Calling WrapText every frame isn't a great idea. If you're wrapping a couple short strings, it's probably fine, but it's better to pre-wrap any text you want to render.

That said, PlayPlayMini has convenience methods that, when used, may result in calling WrapText every frame, so this update makes doing so less-bad.