Starting point to include SZ3

[vasole]

This PR provides a starting point to include the filter.

Not all features are tested, but they are exposed to the user.

[vasole]

The SZ repository (not the SZ3) contains example test data in text and binary format. The test code inside the H5Z-SZ3 repository is expected to be used (once built and with the dlls in the used HDF5 library repository) as follows:

"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\convertBinToHDF5.exe" -f data .\testdata\x86\testfloat_8_8_128.dat 8 8 128
"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\convertBinToHDF5.exe" -d data .\testdata\x86\testdouble_8_8_128.dat 8 8 128

REM	printf("Usage: print_h5repack_args <options>\n");
REM	printf("Options:\n");
REM	printf("	-M <error bound mode> : 10 options as follows. \n");
REM	printf("		ABS (absolute error bound)\n");
REM	printf("		REL (value range based error bound, so a.k.a., VR_REL)\n");
REM	printf("		PSNR (peak signal-to-noise ratio)\n");
REM	printf("		NORM2 (norm2)\n");
REM	printf("	-A <absolute error bound>: specifying absolute error bound\n");
REM	printf("	-R <value_range based relative error bound>: specifying relative error bound\n");
REM	printf("	-N <norm2>: specifying norm2 error bound\n");
REM	printf("	-S <PSNR>: specifying PSNR\n");
REM	printf("* examples: \n");
REM	printf("	print_h5repack_args -M ABS -A 1E-3 (output: -f UD=32024,0,9,0,1062232653,3539053052,0,0,0,0,0,0)\n");
REM	printf("	print_h5repack_args -M REL -R 1E-4 (output: -f UD=32024,0,9,1,0,0,1058682594,3944497965,0,0,0,0)\n");
REM	exit(0);

"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\h5repack.exe" -f UD=32024,1,9,0,1062232653,3539053052,0,0,0,0,0,0 .\testdata\x86\testfloat_8_8_128.dat.h5 .\testdata\x86\testfloat_8_8_128.dat.abs.h5
"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\h5repack.exe" -f UD=32024,1,9,1,0,0,1058682594,3944497965,0,0,0,0 .\testdata\x86\testfloat_8_8_128.dat.h5 .\testdata\x86\testfloat_8_8_128.dat.rel.h5
"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\h5repack.exe" -f UD=32024,1,9,0,1062232653,3539053052,0,0,0,0,0,0 .\testdata\x86\testdouble_8_8_128.dat.h5 .\testdata\x86\testdouble_8_8_128.dat.abs.h5
"C:\Program Files\HDF_Group\HDF5\1.10.6\bin\h5repack.exe" -f UD=32024,1,9,1,0,0,1058682594,3944497965,0,0,0,0 .\testdata\x86\testdouble_8_8_128.dat.h5 .\testdata\x86\testdouble_8_8_128.dat.rel.h5

The 1 after the filter number is to force the usage of the filter. Leaving the value to 0 makes the filter optional.

[t20100]

Nice!
Some first comments/suggestions