Async for pon encode/decode and util compress/decompress? about gm_express

[brandonsturgeon]

After testing, making pon async was fairly straightforward but had very little benefit.

util.Compress is the huge time sink, and no amount of async seems to make it better.

Instead, I've decided that Express will forego Compression unless it simply couldn't upload without it. Even then, I think removing Compression is the right way forward regardless.

util.Compress on a 70mb payload completely locks the game for about 15 seconds, which is simply unacceptable and would be difficult to diagnose for the average user. Perhaps I'll make some kind of async Compress system for these cases.

We can have the browser do some compression to ease the burden of uploading/downloading, but I think this is best left outside of the lua environment if possible.