Replay, moajemalloc_info, phc, and memory needed additional
pieces (mostly Printf.cpp and dependencies) to build
successfully on Windows.
Depends on D114651
Differential Revision: https://phabricator.services.mozilla.com/D114652
While all toolkit and js-based projects make use of mfbt, some others,
like tools/crashreporter and tools/update-packaging, don't.
So instead of including mfbt from the top-level directory, include it
from the relevant project top-level mozbuilds.
This allows to remove the dependency on mfbt files in the hash for the
minidump-stackwalk and mar-tools toolchains.
Differential Revision: https://phabricator.services.mozilla.com/D98378