Add support to override display adjustments by token

This is the bridge to link customized adjustments to an activity
or window token.

The DisplayAdjustments in ResourcesImpl is associated with
ResourcesKey. The new usage requires to associate with token.
That is why the new field is added in Resources.

Bug: 147213487
Test: atest ResourcesManagerTest#testOverrideDisplayAdjustments
Change-Id: Ie79c331654d564aee7af8c6ce98a4c72dd3132b1