Feature/protocols fixes

[pedroSG94]

RTMP

• Fix Acknowledgement sequence value
• Fix write extended timestamp
• Fix parse chunk stream id
• Avoid send auth command when no user or password

RTSP

• Fix AAC, G711 and Opus fragmented packets case
• Fix digest auth
• Fix NTP timestamp to be unique per session
• Fix parse method command

SRT

• Fix overflow message number
• Fix change message number on resend
• Fix discard packets in queue
• Fix send ACK2 only on full ACK packet
• Fix AdaptationField
• Fix Pes flags
• Fix Psi coninuity counter to counter by pid
• Fix Psi version to limit 5 bits
• latency to millis
• Refactor Pid to avoid share between SrtClient instances

WHIP

• Fix SRTCP encrypt