-> Some slight changes in spacing showed that we were centering
folders a bit too eagerly
-> Once there is less than a ~4x delta between the spacing on the left
vs. the right of the folder, center it.
issue 27671587
Change-Id: Ic2861ab375d9b9e4cf0eeb28b683073246f35c97
-> Created com.android.launcher3.folder package to house most folder-related files
(aside from the FolderInfo) which is more related to the model than the UI.
Change-Id: I767063e1e4c775c01a799a3bede30cd94ac48ade