Feature/clover profiling

Adds the profiler_on option to Cloverleaf. This flag will  enable post processing the profile data from OPS and produce a comparable profiler report to that of the Original Cloverleaf application. 
Usage: set profiler_on=1 in clover.in and OPS_diags to > 1 e.g. ops_init(argc,argv,2)
Then the full ops profile will be written to a file named prof.out. The summary profile (similar to the original) will be written to STD out