RootCanal: Implement LE-ISO

Implement LE-ISO as rust extension to RootCanal.
This change implements support for the connected
isochronous streams, with some limitations.

Supported features:
     - Connected Isochronous Stream Central
     - Connected Isochronous Stream Peripheral

Implemented commands:
     - LE Set Cig Parameters
     - LE Set Cig Parameters Test
     - LE Create Cis
     - LE Remove Cig
     - LE Accept Cis Request
     - LE Reject Cis Request
     - LE Setup Iso Data Path
     - LE Remove Iso Data Path

Implementation limits:
     - Does not implement support for ISO
       fragmentation and defragmentation
       (framed PDUs)

Bug: 253535400
Test: m root-canal
Change-Id: Ie7c9072d98c74e58dac45086f16028a46fedad0b