[WPT] Move credential-management/ Python to dedicated FedCM directory
This CL moves the remaining Python files in
wpt/credential-management/support/ to a dedicated FedCM directory.
BUG=347026221
Change-Id: I5ea4265c7a0dcf8dd3cb04027dbd72245f647277
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5642923
Reviewed-by: Christian Biesinger cbiesinger@chromium.org
Commit-Queue: Peter Kotwicz pkotwicz@chromium.org
Cr-Commit-Position: refs/heads/main@{#1319562}