Added MIT License

Merge branch 'master' of https://github.com/delphic/Hestia

Added more note frequencies and first pass play SFX method

Improved look ahead time

Fixed ahead time to actually work so that FPS in fact matches target tickRate - however have seen frame time variance vary as if ticks can get out of sync with when requestAnimationFrame wants to run

Fix for default font assignment

Notes and linting

Added optional ADSR envelopes to play note

Added option to init audio module with wavetables

Reduced look ahead time

Added attack and release to play note, also added look ahead time to avoid pops

Added custom wavetables from chromium web audio samples

dequantise scheduled notes, added button to play theme

Basic keyboard and scheduling test in audio demo

Moved FPS counter to top right in fonts demo