DataType/Algorithm/Process Ontology development

[satra]

Concurrent with the library implementation we are developing a set of
terms for use in neuroimaging applications. The current list is at:

https://github.com/INCF/ProvenanceLibrary/wiki/terms

let's figure out how they should be structured and defined.

Please feel free to contribute new terms and definitions. We want this to evolve
into a process ontology that will then be hosted under a broader ontology.