Move repository to Sierra wireless organization

[sbernard31]

Move repository to https://github.com/AirVantage organization.

Maybe before we need to choose and open-source license before...

For now this is now clear which license we can use with bpf and maybe bcc already choose a license for us ...

• see §Licensing issues in https://lwn.net/Articles/603983
• https://github.com/iovisor/bcc/issues/1804

[sbernard31]

Repository is moved but licensing questions are still there : #13