TODOs and hacks remaining in NativeEngine implementation about babylonnative

[CedricGuillemet]

I didn't find an equivalent for SetZOffset, GetZOffset in bgfx. Did I miss something?

[CedricGuillemet]

Discover implications of “num” value on non-D3D11 pipelines -> only used with Vulkan when adding a sampler. I've updated the comment.

[CedricGuillemet]

This issue seems outdated to me. Any objection for closing it? @bghgary @syntheticmagus

[bghgary]

I think many of these are fixed now, but there are still some left that are not. I think we can open separate issues for the remaining items. Thoughts?

[bghgary]

I checked a bunch of the checkboxes now that many of them are addressed. Only the zOffset one, which causes #1053 and stub ones are left.

[bghgary]

@docEdub Do you mind splitting the remaining checkboxes into their own issues?

[docEdub]

The checkbox for "Set the Z offset in SetState:" is captured in issue #1053.

The checkboxes for URL.createObjectURL and URL.revokeObjectURL are now captured in issue #1240.

The checkbox for "Fix stub for Blob in engine" is now captured in issue #1241.

[bghgary]

Added issues to OP, closing in favor of separate issues.