Bluetooth: HID: Add support for HID Device Role

This patch adds the HID Device Role support in Bluetooth framework.
Also AIDL and callback related files for HID Device role are added
to provide interface for third party applications to communicate with
HID device Service.

CRs-Fixed: 573086

Change-Id: Id03a362b7bcfa2e76056fa0197eaac12ce49b5a2