HDF5Writer: DCollector::Dimensions getPointer

[ax3l]

While using methods like writeAttribute with DCollector::Dimensions objects, one should use getPointer() instead of &:

&sim_size -> sim_size.getPointer()

DCollector::Dimensions sim_size( 1, 2, 3);
domainCollector.writeAttribute( currentStep,
                                DCollector::ColTypeDim(),
                                dataSetName.str().c_str(),
                                "sim_size",
                                sim_size.getPointer() );

[ax3l]

Fixed with 5b3903b (Merge of #78).
@psychocoderHPC we close that issue after your flex/lego/... particle branch was merged.

[ax3l]

Closed with #78 and #86