Add functional examples

[cluebbert]

Example data has been added in the form of the setaria shattering dataset from Mamidi et al.

The next step is to use this to make functional examples for our functions as right now they are just place holders.

I think the example data can be given a more concise name but it is verbose right now to give an indication of provenance in case we find we need to tweak the format or contents of these example files.