This adds two new boolean flags:
config_show_color_inversion_preference
config_show_color_correction_preference
Which whent set to false, will hide the color inversion and color
correction preference items, respectively.
Bug: 62378109
Test: make RunSettingsRoboTests
ROBOTEST_FILTER=AccessibilitySettingsTest
Change-Id: I06eac8e141bd6564495298c6c6544a7b059a4e73