Add ancillary message for cached results to gadget

Authored by Lucas_Werkmeister_WMDE on Tue, Nov 7, 12:23 PM.

Description

Add ancillary message for cached results to gadget

If the API response indicates that a result is potentially outdated,
communicate this to the user in an ancillary message on the
ConstraintReportPanel.

Bug: T179844
Change-Id: I819e108d36786df85167c2696be2bc66bce368f8
Depends-On: Ic194c64470487391b2f81c58bc332c8268f1e0c8