Extract @generative-music/utilities to its own repository

[alexbainter]

• [x] #18

• chord

• transpose

• invert

• intervals

• chords

• getOctave

• getPitchClass

• getDistance

• sortNotes

• simplifyNote

• toss

• getClosestNote

• sampleNote

• [x] #19

• createBuffer -> createToneBuffer

• createBuffers -> createToneBuffers

• createSampler

• createPrenderableSampler

• renderBuffer -> renderToneBuffer

• createPrerenderableBufferArray -> createPrenderableToneBufferArray

• createPrenderenableBuffers -> createPrenderableToneBuffers

• createPitchShiftedSampler

• createPrenderableSampledBuffers -> createPrerenderableSampledToneBuffers (maybe merge with createPrerenderableToneBuffers?)

• createReverseSampler

• createPrerenderableInstrument

• createPrerenderedBuffer -> createPrerenderableToneBuffer

• [x] #20

• getRandomElement

• getRandomNumberBetween

• shuffleArray

[alexbainter]

Closing in favor of #18, #19, and #20