Added doxygen script
Added build flag, CUSEHDF5 and CPMETRICS to Makefile

CUSEHDF5 is a build flag for hdf5. When CUSEHDF5 is ‘yes’ (default),
hdf5 output file format is enabled.
CPMETRICS is a build flag for PERFORMANCE METRICS. When CPMETRICS is
‘yes’ (default s ‘no’), PERFORMANCE METRICS data is shown.
EX: make CPMETRICS=‘yes’