Add support for HDF5 Superblock version 3

dectris-neggia-1.2.0.el6.tar.gz
dectris-neggia-1.2.0.el7.tar.gz

New features:

• add support for Data Layout Message version 4
• add tools for checking HDF5 compatibility to neggia (please see updated README.md)

Bugfixes:

• fix bug when reading uncompressed chunked data
• fix bug setting overflow values to -1 for uint16 and uint8 input data

Improved building with CMake

Use CMake features to determine compiler flags, etc.

Support Eiger2 HDF5 files.

Add support for HDF5 superblock version 2.

Handle 16bit image depth data correctly

Pull requests: #5 and #7

Make neggia errors obvious

Add "NEGGIA ERROR" in text of exceptions so that it's obvious in XDS logs where the error came from.

Initial release

XDS plugin that reads hdf5 files written by Dectris Eiger Detectors.