feature: decode ArrayBuffer as well as byte arrays

[gfx]

For low-level API that emits ArrayBuffer.

[codecov-io]

Codecov Report

Merging #78 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #78      +/-   ##
==========================================
+ Coverage   98.14%   98.15%   +<.01%     
==========================================
  Files          15       15              
  Lines         916      919       +3     
  Branches      186      187       +1     
==========================================
+ Hits          899      902       +3     
  Misses         17       17

Impacted Files	Coverage Δ
src/utils/typedArrays.ts	84.61% <100%> (+2.79%)	⬆️
src/decode.ts	100% <100%> (ø)	⬆️
src/Decoder.ts	98.85% <100%> (ø)	⬆️

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