Scapy license in VPP
Vratko Polak -X (vrpolak - PANTHEON TECHNOLOGIES at Cisco)
First draft created  for the change that will switch
licenses for Python files used together with Scapy.
For some files, I was not sure whether they are used together with Scapy.
One big detail is that vpp_papi needs to have dual license,
as test framework integrates with it (and with scapy).
If I understand the licensing logic correctly,
CSIT tests can still choose to use vpp_papi under Apache license option.
But we may need to discuss that with lawyers.
Ray, you may need to upgrade your contributor-finding shell pipeline
to cover all files I added the new license into.