rbd-replay: Move tracepoints from internal.cc to librbd.cc

Signed-off-by: Adam Crume <adamcrume@gmail.com>
rbd-replay: Remove extent tracepoints and inline extents

Signed-off-by: Adam Crume <adamcrume@gmail.com>
rbd-replay: Fix bug in rbd-replay-prep, Thread::issued_io with wrong IO

Signed-off-by: Adam Crume <adamcrume@gmail.com>