Merge "Add local wallpaper color extraction to folder backgrounds." into sc-dev am: 32ee8c6a51 am: 73255759c6 am: 25a03efcb3

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14330015

Change-Id: I71b7af10344c2db22fcf1551d1b4df3c47319113