borrow tst_norm.c from netCDF test program

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1796 c368ceb8-fd28-0410-a457-e46ee1d7cd4a
update Makefile.in for new test programs

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1797 c368ceb8-fd28-0410-a457-e46ee1d7cd4a
fix the error in Makefile.in in r1797

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1798 c368ceb8-fd28-0410-a457-e46ee1d7cd4a