Add tutorial for the password manager

There is a bug where the second bubble (anchored inside the browser app menu) does not show up on Linux. This is being fixed in parallel.

To run the tutorial:
1) Enable #password-manager-redesign flag
2) Go to chrome://internals/user-education
3) Click "Launch" on "Password Manager Tutorial"
4) The first tutorial bubble will appear anchored to the browser app menu

Bug: 1445187
Change-Id: I52c0dbd0637ffc4745766612b4884c353effc3d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4528537


Commit-Queue: Mickey Burks <mickeyburks@chromium.org>
Reviewed-by: Viktor Semeniuk <vsemeniuk@google.com>
Reviewed-by: Dana Fried <dfried@chromium.org>
Code-Coverage: Findit <findit-for-me@appspot.gserviceaccount.com>
Reviewed-by: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1148541}