Investigate building Python-tcod on Pyodide.

[HexDecimal]

Unlike other Python-to-web ports, Pyodide has decent support for arbitrary Python C extensions. Libtcod is already known to work in Emscripten, so I only need to setup a proper build environment. I suspect it will break at first but any issues should be easy to fix.

[HexDecimal]

Compiled an experimental Pyodide wheel, currently uploaded to the 19.0.0 release page, but GitHub releases can not host wheels for micropip.install due to cross-site policy (Cross-Origin Resource Sharing).