GitLab

This is the first in a series of changes to create a freeform dialog
for adding an SMB share in addition to the dialog existing in settings.

- Moves add_smb_share dialog to cr_components
- Switches $i18n{} to i18n()
- Updates BUILD files

Bug: chromium:887135
Test: verified on test device
Change-Id: I1133d9e45ee7ac63e338e22e4e69e3e000a3ee02
Reviewed-on: https://chromium-review.googlesource.com/c/1281868
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603763}