New feature “Text and reading options” for SetupWizard, Wallpaper, and Settings (5/n).

- Create the app grid preview layout xml.
1) To avoid being large patch size, the preview component will be separated into sub patches, this patch would be one layout of all previews.
2) The layout will be integrated with the TextReadingPreviewPreference and TextReadingPreferenceFragment in the next patches.

Bug: 211503117
Test: make
Change-Id: I5e9048ce4d6f07ac8c1a1bc77d19e6ceb536da49