Add flag to enable pprof to runner

[fyrchik]

Currently we need to modify template (1) and to add ports in docker-compose (2).
It would be nice to do both with just ./runner.sh --pprof.
For (1) I haven't found a way to add an overlay for this via -v parameter of our template engine (it supports only map keys and no wildcards), so we need some other solution (may be make enable pprof for all nodes simultaneously).
For (2) we can just add these ports to docker-compose for all bench invocations.