xrootd/...: rename package protocol into xrdproto
mechanically produced with:
mkdir pkg
gomvpkg -from go-hep.org/x/hep/xrootd/protocol/login -to go-hep.org/x/hep/xrootd/pkg/login -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/protocol/handshake -to go-hep.org/x/hep/xrootd/pkg/handshake -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/protocol/protocol -to go-hep.org/x/hep/xrootd/pkg/protocol -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/protocol -to go-hep.org/x/hep/xrootd/xrdproto -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/pkg/protocol -to go-hep.org/x/hep/xrootd/xrdproto/protocol -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/pkg/handshake -to go-hep.org/x/hep/xrootd/xrdproto/handshake -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"
gomvpkg -from go-hep.org/x/hep/xrootd/pkg/login -to go-hep.org/x/hep/xrootd/xrdproto/login -vcs_mv_cmd "git mv {{.Src}} {{.Dst}}"