[1/X] Introduce CompanionDeviceServiceConnector

Bug: 211398735
Test: atest CtsCompanionDeviceManagerCoreTestCases
Test: atest CtsCompanionDeviceManagerUiAutomationTestCases
Test: atest CtsOsTestCases:CompanionDeviceManagerTest
Change-Id: Icac9c6b300b9bd18577945ea50429af77d5d3ace
1 file changed