a cross application run time for luau

TODO:

• @cart/net implementation
  • fetch
  • websocket
  • server
• @cart/web implementation
• @cart/process implementation
  • basic process spawning
  • asyncify :wait()
  • io redirection
• @cart/json implementation
• Add more examples
• Automate js package building (currently a batch script with copy)
• Build js package instead of publishing ts files to npm
• Add tests

Currently using zig version 0.14.0-dev.2571

zig build run -- examples/test.luau

Use the cart-luau package to use cart within a js epplcation. Some examples also can be run by launching a server:

# in /web
bun install
bun run dev