Matt Johnson

Rebased on the current dev branch (30392d91ca9e5d87b350bb3a315d4f5cf94e25bb) and resolved conflicts in `pxr/base/ts/spline.cpp` by reverting, since usages of `std::shared_ptr::unique()` were removed in c898413e6dd68ce1de7e2337ea8c3baacb49246e.

> Just noting that this seems similar to #2675 Ahh, it is indeed, thanks @nvmkuruc. I somehow missed seeing that one go by. The only difference between the two looks...

Freshening with a rebase on the current dev branch (35dbce15eb3dc6c805b65135d911c246716fd192).

Hey @kxl-adsk, sorry for the extremely delayed response here, but I'm just starting to dig into this to try to unblock some internal user testing of the VP2.0 render delegate....

Hey @fabal! Yeah, I started looking into this a while back, but we ended up determining that it may not be as useful as we thought. That was mainly due...