Currently, the user sets the Broadcast Code via an array of integers
in the config file. However, the Bluetooth Core Specification indicates
that it should be set via a 16 byte string. This commit replaces the old
implementation with the one required by the spec.
Tested the commit with the example provided in the Core Spec:
Broadcast Code: Børne House
Result from btsnoop log:
< HCI Command: LE Create Broadcast Isochronous Group (0x08|0x0068) plen 31
...
Broadcast Code[16]: 000000006573756f4820656e72b8c342
The result matches the example given in the spec.
Add "encryption" parameter to bluez5.bcast_source.config entry in
the configuration file. This allows the user to control the use of
Broadcast encryption.
Add some option to set manually group IDs of unicast streams
of devices.
Intel controllers don't appear to support more than one group at a time,
but in principle this can be done.
