Added clang-format directives.

src/cdf_int.c

src/cdf_util.c

src/cdf_write.c

src/cdi_across.c

src/cdi_fdb.c

src/cdi_int.c

src/grb_write.c

src/grid.c

src/institution.c

src/namespace.c

src/stream_cdf_i.c

src/stream_gribapi.c

src/taxis.c