Introduce WifiAggressiveHandoverPreferenceCtrl

 - Create new WifiAggressiveHandoverPreferenceController
 - Create controller inside the DashboardFragment
 - Port logic from DevelopmentSettings into the controller

Bug: 34203528
Test: make RunSettingsRoboTests -j40
Change-Id: Ic32119a83ca21a6475cfd27b04cde76ba87bd372
3 files changed