Implement Hearing Devices Quick Settings Tile (2/n)

This patch provides
* dialog setup and show when clicking on the hearing device tile

Bug: 291423171
Bug: 319197158
Test: atest HearingDevicesTileTest HearingDevicesDialogDelegateTest
Flag: ACONFIG com.android.systemui.hearing_aids_qs_tile_dialog DEVELOPMENT
Change-Id: I8c9ff2935527df54c48fb1161dc86ae24e88d97b