Parse binarygltf with dataView

[jbo023]

• change parseBinaryGltf to use DataView instead of TypedArray, so we do not have to copy the TypedArray to assure the correct byte alignment.
• change Batched/Instanced3DModel3DTileContent to not copy arraybuffer

As discussed in this PR #5784

TODOs

• Test with glb (Gltf 2.0) Model
• Check if parseBinaryGltf should be a PR in gltf-pipeline

Also at first I also wanted to change the typedarray copy of the batchTableBinary. But the batchTableBinary needs the correct byte-alignment and i couldn't find any reference in the 3D Tile spec that the batchTableBinary part should be byte aligned. Should this maybe part of the 3D Tiles Spec? Or do i just check the alignment(largest possible datatype) and only copy if its not aligned properly?

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[mramato]

@lilleyse do you plan on taking a look at this? Seems like a simple enough change.

[hpinkos]

@lilleyse is this something we want or should this be closed?

[lilleyse]

Sorry for letting this slide @jbo023.

The fixes are still relevant for more efficiently loading tiles whose glb content is not correctly aligned, but I think we can close - gltf-pipeline is being upgraded to 2.0 soon and includes the fixes to use DataView, and soon we will remove the workarounds to load deprecated 3D Tiles, including removing this alignment workaround. It wasn't part of the list in #5363 but I'll add it.