Add Hearing devices related tools

* Use config_quickSettingsHearingDevicesRelatedToolName and config_quickSettingsHearingDevicesRelatedToolIcon to control what tools need to be shown here.
* If tool icon is not provided, will use icon in PackageManager instead.

Bug: 341648471
Test: atest HearingDevicesToolItemParserTest HearingDevicesDialogDelegateTest HearingDevicesToolItemListTest
Flag: EXEMPT bugfix

Change-Id: I69c7ef62b4d85a65a3efb950b32a4e00412a76c6