Accept list & dict instances as iface= parameter in sniff()

[p-l-]

This PR fixes #3191

[codecov]

Codecov Report

Merging #3234 (601a782) into master (fdfb7dc) will decrease coverage by 1.90%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master    #3234      +/-   ##
==========================================
- Coverage   87.76%   85.85%   -1.91%     
==========================================
  Files         273      269       -4     
  Lines       56042    54831    -1211     
==========================================
- Hits        49183    47077    -2106     
- Misses       6859     7754     +895     

Impacted Files	Coverage Δ
scapy/sendrecv.py	83.04% <33.33%> (-4.74%)	⬇️
scapy/arch/linux.py	0.73% <0.00%> (-83.30%)	⬇️
scapy/contrib/cansocket_native.py	16.94% <0.00%> (-76.28%)	⬇️
scapy/layers/tftp.py	40.25% <0.00%> (-56.59%)	⬇️
scapy/contrib/isotp/__init__.py	61.90% <0.00%> (-38.10%)	⬇️
scapy/contrib/automotive/enumerator.py	43.87% <0.00%> (-30.63%)	⬇️
scapy/contrib/automotive/obd/scanner.py	39.41% <0.00%> (-26.81%)	⬇️
scapy/supersocket.py	59.81% <0.00%> (-15.42%)	⬇️
scapy/arch/common.py	76.66% <0.00%> (-15.00%)	⬇️
scapy/contrib/cansocket.py	66.66% <0.00%> (-9.53%)	⬇️
... and 87 more

[p-l-]

Duplicate of (fixes the same bug than) #3209

[gpotter2]

It's nicer to use the L2socket of an interface for each interface rather than using one globally