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.

Change-Id: Id03a362b7bcfa2e76056fa0197eaac12ce49b5a2
CRs-Fixed: 573086
Bluetooth: Changes for LPP and extended LE scan

This patch includes implementation of a new Bluetooth
Adapter named QBluetoothAdapter for implementing LE
specific tasks that the default adapter doesnt perform.
This patch also implements Low power proximity and extended
LE scan functionality based on service UUIDs.

CRs-Fixed: 581289
Change-Id: I63e0593f79c8929d4e18cee0472fcb401c8892e7
OBEX: Reduce Obex MTU size for A2DP or SCO concurrency

Reduce Obex MTU to 8k from 64k when OPP send is tried with
SCO / A2DP streaming in progress, so that the continue
response for first complete Obex PUT packet is received
from SOC within 50 seconds time frame.

CRs-Fixed: 571865
Change-Id: I1eae114f57f2a92ee4b26c82d8f55fafe02775b8
Bluetooth: Cleaning up sap service object to avoid serviceRecord leaks

A case where script is running to do BT ON/OFF 2000 times. Sap service
class object is leaked while turning OFF BT, when it is referenced
(Directly OR Indirectly due to its member variables). So Garbage
Collector doesn't collect class object which is referenced. Setting
NULL for service class object & service connection, while cleaning up
those variable to mark as weak reference. Any objects memory is
immediately claimed by GC, which are marked as weak reference.

Change-Id: I905d1e542c159c8f9addcb8491aee900697c9006
CRs-Fixed: 591180
Bluetooth: Fix to avoid framework reboot during monkey.

A case where monkey is running & sometimes framework is
disconnected due to unhandled java Exception during the
binding of DUN, SAP, HID device & PAN service on unsuccessful
binding. So it never handled. Handing java exception while binding
DUN, SAP, HID device & PAN  services to solve this issue.

Change-Id: Idea710593a3f9496305f636042605303e73e7749
CRs-Fixed: 564709