Add script for analysis of MPI profile output.
Add script for analysis of MPI profile output.

Script collates region times from JSON-formatted profile
output, presenting raw times or quartiles in CSV table.

halfflat/arbor,eth-cscs/nestmc-proto,eth-cscs/nestmc-proto,halfflat/arbor,halfflat/nestmc-proto,halfflat/nestmc-proto,halfflat/arbor,halfflat/arbor,halfflat/arbor,halfflat/nestmc-proto,eth-cscs/nestmc-proto