Add support type BFCP

[FizikRoot]

Current polycom use SDP like

v=0
o=- 1674740882 1674740882 IN IP4 192.168.1.76
s=MRD=MRE MRC-V=1.0.1
c=IN IP4 192.168.1.76
b=AS:1024
t=0 0
a=sendrecv
a=vnd.polycom.MBA.p2p:v=1.0.1
m=audio 3230 RTP/AVP 118 115 114 9 102 113 101 103 0 8 15 18 119
a=sendrecv
a=rtpmap:118 SIRENLPR/48000/1
a=fmtp:118 bitrate=64000
a=rtpmap:115 G7221/32000
a=fmtp:115 bitrate=48000
a=rtpmap:114 G7221/32000
a=fmtp:114 bitrate=32000
a=rtpmap:9 G722/8000
a=fmtp:9 bitrate=64000
a=rtpmap:102 G7221/16000
a=fmtp:102 bitrate=32000
a=rtpmap:113 G7221/32000
a=fmtp:113 bitrate=24000
a=rtpmap:101 G7221/16000
a=fmtp:101 bitrate=24000
a=rtpmap:103 G7221/16000
a=fmtp:103 bitrate=16000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:15 G728/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:119 telephone-event/8000
a=fmtp:119 0-15
m=video 3232 RTP/AVP 111 109 110 96 34 31 106 105 116
a=sendrecv
a=rtcp-fb:* nack pli
a=rtcp-fb:* ccm fir
a=rtcp-fb:* ccm tmmbr
a=vnd.polycom.forceVideoMode:9
a=rtpmap:111 H264/90000
a=fmtp:111 profile-level-id=64001f; packetization-mode=1; max-br=20010; sar=13
a=vnd.polycom.avcplus.p2p:111 max-temp-layer-p2p=3
a=rtpmap:109 H264/90000
a=fmtp:109 profile-level-id=42801f; max-br=20010; sar=13
a=vnd.polycom.avcplus.p2p:109 max-temp-layer-p2p=3
a=rtpmap:110 H264/90000
a=fmtp:110 profile-level-id=42801f; packetization-mode=1; max-br=20010; sar=13
a=vnd.polycom.avcplus.p2p:110 max-temp-layer-p2p=3
a=rtpmap:96 H263-1998/90000
a=fmtp:96 CIF4=1;CIF=1;QCIF=1;SQCIF=1;CUSTOM=352,240,1;CUSTOM=704,480,1;CUSTOM=1024,768,1;CUSTOM=800,600,1;CUSTOM=640,480,1;T
a=rtpmap:34 H263/90000
a=fmtp:34 CIF4=1;CIF=1;QCIF=1;SQCIF=1
a=rtpmap:31 H261/90000
a=fmtp:31 CIF=1;QCIF=1
a=rtpmap:106 H264-SVC/90000
a=fmtp:106 profile-level-id=56001f; packetization-mode=1; max-br=20010; sar=13
a=rtpmap:105 H264-SVC/90000
a=fmtp:105 profile-level-id=53e01f; packetization-mode=1; max-br=20010; sar=13
a=rtpmap:116 vnd.polycom.lpr/9000
a=fmtp:116 V=2;minPP=0;PP=150;RS=52;RP=10;PS=1400
m=application 3238 UDP/BFCP *
a=sendrecv
a=setup:actpass
a=connection:new
a=floorctrl:c-s
m=application 3236 RTP/AVP 100
a=sendrecv
a=rtpmap:100 H224/4800

Description

Reference issue

Fixes #...

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 64.67%. Comparing base (2edc074) to head (e1897fb).

Files	Patch %	Lines
unmarshal.go	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #150   +/-   ##
=======================================
  Coverage   64.67%   64.67%           
=======================================
  Files          12       12           
  Lines        1571     1571           
=======================================
  Hits         1016     1016           
  Misses        454      454           
  Partials      101      101           

Flag	Coverage Δ
go	64.67% <0.00%> (ø)
wasm	64.67% <0.00%> (ø)

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[Sean-Der]

Great work @FizikRoot I would love to accept this change.

Would you mind adding a unit test?

[FizikRoot]

Add avoid exception when read Cisco SDP with CUBE

v=0
o=tandberg 4 1 IN IP4 192.168.1.248
s=-
c=IN IP4 192.168.1.253
b=AS:1920
t=0 0
a=cisco-mari-rate
m=application 2455 UDP/UDT/IX *
a=ixmap:0 ping
a=ixmap:2 xccp

[Sean-Der]

Oof I am really sorry how long this took @FizikRoot merging now!