New feature “Text and reading options” for SetupWizard, Wallpaper, and Settings (11/n).

- Create the display size LabeledSeekBarPreference and add the entry
1) It's integrated with the system display density configurations.
2) Create the new DisplaySizeData component to store the configurations related to the display size features.

Bug: 211503117
Test: make RunSettingsRoboTests ROBOTEST_FILTER=DisplaySizeDataTest
Change-Id: If9e5cc6e2ff2c4f530634e39eb3cddd9e275bc03