dnsdist: Move dnsdist-specific files

diff --git a/pdns/bpf-filter.cc b/pdns/dnsdistdist/bpf-filter.cc
similarity index 100%
rename from pdns/bpf-filter.cc
rename to pdns/dnsdistdist/bpf-filter.cc

diff --git a/pdns/bpf-filter.hh b/pdns/dnsdistdist/bpf-filter.hh
similarity index 100%
rename from pdns/bpf-filter.hh
rename to pdns/dnsdistdist/bpf-filter.hh

diff --git a/pdns/delaypipe.cc b/pdns/dnsdistdist/delaypipe.cc
similarity index 100%
rename from pdns/delaypipe.cc
rename to pdns/dnsdistdist/delaypipe.cc

diff --git a/pdns/delaypipe.hh b/pdns/dnsdistdist/delaypipe.hh
similarity index 100%
rename from pdns/delaypipe.hh
rename to pdns/dnsdistdist/delaypipe.hh

diff --git a/pdns/doh.hh b/pdns/dnsdistdist/doh.hh
similarity index 100%
rename from pdns/doh.hh
rename to pdns/dnsdistdist/doh.hh

diff --git a/pdns/xsk.cc b/pdns/dnsdistdist/xsk.cc
similarity index 100%
rename from pdns/xsk.cc
rename to pdns/dnsdistdist/xsk.cc

diff --git a/pdns/xsk.hh b/pdns/dnsdistdist/xsk.hh
similarity index 100%
rename from pdns/xsk.hh
rename to pdns/dnsdistdist/xsk.hh