Enable head-based sampling and add some scripts for large scale deployment

This PR is related to the following issues:

• Head based sampling: https://gitlab.mpi-sws.org/cld/tracing/hindsight-grpc/-/issues/17
• Data type of duration: https://gitlab.mpi-sws.org/cld/tracing/hindsight-grpc/-/issues/20
• Docker images and scripts for deployment: https://gitlab.mpi-sws.org/cld/tracing/hindsight-grpc/-/issues/15

Side note, gen_address.py and config/alibaba_parse.py are not used, will be discarded later.

src/client.cc

@@ -314,11 +314,8 @@ int main(int argc, char** argv) {
   arguments.service_name = NULL;
   arguments.topology_filename = NULL;
   arguments.addresses_filename = NULL;
-<<<<<<< HEAD
   arguments.interval = 10;
-=======
   arguments.sampling = 1;
->>>>>>> 9540649 (head-based samplingenabled for ot-jaeger)
 
   /* Parse the arguments */
   argp_parse (&argp, argc, argv, 0, 0, &arguments);