1) Add a new text reading preference fragment for SetupWizard.
2) Add the entry into the vision settings, and temporarily set the visibility as gone.
Bug: 211503117
Test: make -j64 RunSettingsRoboTests ROBOTEST_FILTER=TextReadingPreferenceFragmentForSetupWizardTest
Change-Id: I5582d79672a9a9a375a79dbdf3a2055e7d785269
