import components from RoboTutor_2020 without copying them

[JackMostow]

RoboSuiteLauncher includes components for logging and configuration originally copied from RoboTutor_2019 or _2020, which is bad because updates to one don't affect the other, and what ought to be a 1-line change (make RoboSuiteLauncher launch RTFaceLogin instead of RoboTutor) changes 83 files and is therefore unnecessarily very hard to review.

Options;

0. Status quo
   -: sucks

1. Export those components from RoboTutor_2020 in a form that RoboSuiteLauncher can import from the RoboTutor_2020 repo without copying them, in the same way that it imports ScreenRecordHelper from the ScreenRecordHelper repo.
   +: minimal change to RoboTutor_2020
   +: reduce the change to RoboSuiteLauncher to ~1 line of ~1 file instead of 83 files.
   -: presence of app component will cause name conflict
   ??: is selective export of a repo's components (in particular minus the "app" component) possible in Android Java, or is export a package all-or-none deal?

2. Clone RoboTutor_2020 to the same machine being used to develop RoboSuiteLauncher so it can call those components. <-- PROBABLY DO THIS, SO PLEASE COMMENT
   +: zero change to RoboTutor_2020
   +: reduces RoboSuiteLauncher to ~1 line instead of 83 files
   -: requires RoboSuiteLauncher developer to clone RoboTutor_2020 as well

3. Move shared components to a separate repo that exports them wherever needed (and has no name conflicts e.g. "app")
   +: share components
   +: doesn't rely on cloning another repo
   -: requires moving lots of code to a separate repo
   -: may have to edit component when editing RoboTutor_2020, requiring edits to >1 repo

4. Consider putting future new components in a separate repo
   +: reasons for 3
   +: new code doesn't require moving