[5% Day] Rip Stuff Out

[aab29]

⚠️ I'm not 100% sure that these changes are safe. Achilles Desktop and Mobile still compile, and so far I haven't been able to get them to crash while playing games... but it's hard to be sure I didn't delete something important. ⚠️

I also wouldn't be surprised if this doesn't build on Android yet. We might need to update the CMakeLists or something. 🤖✋

MOAI is filled with lots of 3rd-party libraries and utilities that we aren't using at all. 🕸️ They probably seemed like good things to include in a game engine back in 2011 or so. 🏛️ These days there are better/more reliable ways to get most of this functionality. So I tried ripping out as much as I could. 🗿✂️ This is mostly low-hanging fruit. 🍍 I'm sure we could make more substantial improvements if we kept at it. 🗿🪓

Things I removed:

• OpenSSL library 🚪
• MOAIHashWriter ✍️
• USHashWriter and subclasses 🇺🇸
• luacrypto library 📉
• luasql library 💿
• luafilesystem library 💾
• Definitions for AKUExtLoadLuasql, AKUExtLoadLuacrypto, AKUExtLoadLuacurl, and AKUExtLoadLuafilesystem 🗿
• USXmlReader class 🕸️
• expat XML parsing library 🛥️
• chipmunk physics engine (We only use Box2D.) 🐿️