Migrate IUsb to AIDL

This change migrates android.hardware.usb.IUsb to AIDL and
adds the default implementation.

Compared to the HIDL interface, AIDL based interface adds
transactionId argument to each of the interface method which
is used while invoking the corresponding callback.

Bug: 200993386
Bug: 199357330
Test: Ran new hal implementation on Pixel. Yet to run VTS.
Change-Id: Id8aa40682d4c4b435c63b3ae249b176276dbb31d