Add CDM profile for "nearby_device_streaming"

* add CDM profile and signature | privileged permission to use the
profile
* add the profile and the permission to the map of valid roles on the
service side
* update the CompanionDeviceActivity to handle the
nearby_device_streaming profile
* add relevant strings and icon for nearby_device_streaming
* add "nearby_device_streaming" to MetricUtils

Bug: 256140614
Test: atest CtsCompanionDeviceManagerCoreTestCases
Test: atest CtsCompanionDeviceManagerNoCompanionServicesTestCases
Test: atest CtsCompanionDeviceManagerUiAutomationTestCases

Change-Id: I1a45395bcdbb13cf131bc7fb49d17d7928d76296
Signed-off-by: Claudiu Ghioc <claudiughioc@google.com>