Don't export Typed.part'

[jamesdbrock]

I've learned that V8 throws an exception if you try to create a non-aligned typed array, so I was wrong to ask for #27 .

We should not export Typed.part'; it will fail with a non-aligned ByteOffset.

[jamesdbrock]

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray#byteoffset_must_be_aligned