xdp: bpf program is compiled inside knotd and loaded from /tmp

.gitignore

Knot.files

src/knot/server/server.c

src/libknot/Makefile.inc

src/libknot/xdp/Makefile

src/libknot/xdp/af_xdp.c

src/libknot/xdp/af_xdp.h

src/libknot/xdp/bpf-kernel-obj.c.default

src/libknot/xdp/bpf-kernel-obj.h

src/libknot/xdp/bpf-user.c

src/libknot/xdp/bpf-user.h