Make Settings and SysUI estimates use same data class

This moves everything over to using a shared data class
for Estimates in SettingsLib which will facilitate a cl
that will help ensure greater consistency across
surfaces where battery estimates are shown.

Test: Tests pass
Bug: 124030091
Change-Id: I0b7f1f3a806255ff4804a00e6d90a7846c484484
11 files changed