Disable TURN refresh in MSOC compatibility mode

At least temporary, maybe it is not used at all. TURN refresh messages
were not seen in the packet capture.
Use local candidate foundation as CANDIDATE-IDENTIFIER when creating
STUN_BINDING requests.

Candidate check pair foundation was used - a combination of local
and remote candidates' foundation, which does not correspond with
[MS-ICE2] 2.2.2.1 0x8054 CANDIDATE-IDENTIFIER
Do not retransmit connection checks on reliable transport