Use Google style for remaining DPBuffer functions
- Use Google style for the remaining functions in DPBuffer (setTime, getTime, setExposure, getExposure, setSolution, getSolution).
- Add test for copy assignment operator.
- Update checking the semantics after a copy or move.
- Add DPBuffer::SolutionType shortcut, analoguous to DataType, WeightsType etc.
Edited by Maik Nijhuis