ENH: add simple profiling of MPI communications

src/OpenFOAM/Make/files

src/OpenFOAM/global/profiling/profilingPstream.C

src/OpenFOAM/global/profiling/profilingPstream.H

src/Pstream/mpi/UIPread.C

src/Pstream/mpi/UOPwrite.C

src/Pstream/mpi/UPstream.C

src/Pstream/mpi/allReduceTemplates.C

src/functionObjects/utilities/Make/files

src/functionObjects/utilities/parProfiling/parProfiling.C

src/functionObjects/utilities/parProfiling/parProfiling.H

...essible/simpleFoam/windAroundBuildings/system/controlDict

...pressible/simpleFoam/windAroundBuildings/system/profiling