Adds procdump_win asset.
Enable ProcDump for some of the jobs failing in skia:7177 as a test
case. If it has no ill effect, we can proceed with enabling it for all
Win bots (and remove "ProcDump" tag).
Bug: skia:7626, skia:7177
Change-Id: I50c67ecfca86fe0c6d91d5f970f81485cc9cfd0a
Reviewed-on: https://skia-review.googlesource.com/113265
Commit-Queue: Ben Wagner <benjaminwagner@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
