Reland "SkVM visualizer, version 0.1"

This reverts commit 372a36de757f033ae930dc43b73ed6aabb73cccd.

Relanding the change

Original change's description:
> Revert "SkVM visualizer, version 0.1"
>
> This reverts commit bf57843b01899fd0ac8ebea02e07b6d94fba7b3c.
>
> Build break
>
> Original change's description:
> > SkVM visualizer, version 0.1
> >
> > Simplified - "no static instructions"
> > Added to skslc with .cpp -> .html
> >
> > Change-Id: I0b56ea0480f868ca4182acb7a23c03acf7f57519
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473659
> > Reviewed-by: John Stiles <johnstiles@google.com>
> > Commit-Queue: Julia Lavrova <jlavrova@google.com>
>
> Change-Id: I938bbf7bb650d1636a0d9bd19e455b455a49ef27
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/487096
> Auto-Submit: Julia Lavrova <jlavrova@google.com>
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>

Change-Id: I15b5f6630de43138da2dc72c4fe708499bed63c3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/487216
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Julia Lavrova <jlavrova@google.com>
8 files changed