Cleanup / Overhaul / Documentation

Mostly driven by issues found while working on BASIK

Enable WasmJs

v0.8.1

Enable WasmJs

Rename to Parsek

v0.8.0

package name adjustment

BASIC example improvements

v0.7.1

BASIC example fixes, use suspend fun for input, version bump

API Cleanup, more examples, cli demos

v0.7.0

update version to 0.7

Split tokenizer into lexer and scanner

Also map regex to functions instead of token types directly in the lexer.