fecs: a lisp interpreter written in wasm

fecs is a programming language in the style of PicoLisp and implemented as a lisp interpreter running in wasm. This version is written in WebAssembly in the .wat format and has a REPL, garbage collection, error throwing, fixedpoint big numbers, symbols and strings. It is an improvement on an older version written in C, which was then compiled to wasm (the old version is here). This project is fully human made and has not used any AI.

- fecs repl with API docs and examples