ncfumction

- The `DataPointInstance.get` command is to add consistency to the system. All other operations have their own methods, only `get` doesn't. It also makes the library a bit more object-oriented....

I think the opposite: `.get` should remain and the new function overloads may be discarded. The reason is that currently there is no object-oriented way to store a data point...

It wouldn't be of significant value, but it brings sandstone abstractions closer to full coverage