Add a tool to gather and visualize memory data for a running crosvm
instance.
BUG=b:290331222
TEST=Run the tool for ARCVM/Borealis
Change-Id: Iffb3c60dfab6bc9e21979ef3ce367cad0e8b0514
Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4712086
Auto-Submit: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Junichi Uekawa <uekawa@chromium.org>
Commit-Queue: Junichi Uekawa <uekawa@chromium.org>
