[Feature][ref #18] ClojureScript

[slurmulon]

Changes

• :tada: Adds support for ClojureScript!
• :cloud: Published bach-cljs package to NPM (v1.0.3 due to missing target/js folder during publish, changed to dist)
• :factory: Integrated shadow-cljs to build ClojureScript library
• :recycle: Refactored resources/grammar.bnf using insta/defparser in bach.ast
• :recycle: Refactored bach.track/get-pulse-beat to use more direct and idiomatic bach.data/gcd (generic greatest common denominator method)
• :microscope: Refactored/updated all tests to work in both Clojure and ClojureScript
• :wrench: Various minor upgrades
• :shipit: Version 2.1.0

Caveats

• :warning: Only bach.track/compose is exported since all "internal" methods work with Clojure maps instead of JSON. Also ratios.
• :warning: Due to evolving state of modules in JS, only commonjs and es6 imports are supported (:esm will come later)

Future

• :package: Support :esm bundles
• :recycle: Rename compile to compose in bach.cli (generally give the cli some love, particularly around ClojureScript)
• :cloud: Update Circle CI config to consider ClojureScript tests

Tickets

• :ticket: #18