[RFC] Vendor 3rdParty dependencies into LXD

Used https://github.com/mjibson/party to create 3rdParty area.

go get github.com/mjibson/party

should install party binary into $GOPATH/bin and then one can use it to refresh the 3rdParty area [http://godoc.org/github.com/mjibson/party].

Signed-off-by: S.Çağlar Onur <caglar@10ur.org>