skip validation in TestProperty, Section creates a dummy dataset ...
unit attribute of ther property dataset not the property group
createProperty needs a Value. new method with vector of Values
changes in Property::values method to use the dataset instead the group
Properties in tests are created using dummy int value
style fixes, Property::mapping set updated only in case a change was done
Section::hasProperty method is now looking for datasets not groups
Property::values(vector<Value>) now works with the dataset
Property::dataType returns first value's type.
Property::values works on the dataset
ProptertyHDF5::valueCount returns size of the dataset
fixed bug in SectionHDF::createProperty with single values
add dummy values for testProperty
add test to TestProperty for single value setting
creating of Properties uses a dummy value
needed to add a few newlines, sorry :-)
made Property::dataset() private
[sync commit!] added createProperty for empty properties. empty prop
does not work, not tested! all other tests pass
retrieval of data type no longer using values but dataset.dataType
createProperty uses NDSize(0) for empty value.
enabled test for empty value creation, THX to gicmo!