created citation file for reo (#772)

* created citation file for reo

* Update given name for author Otte to 'J. Neil'

---------

Co-authored-by: J. Neil Otte <neilotte@gmail.com>

Author: johnbeve

CITATION.cff

@@ -0,0 +1,26 @@
+cff-version: 1.2.0
+message: "If you use the Common Core Ontologies in your research or software, please cite as below."
+title: "The Common Core Ontologies"
+version: "2.0"
+authors:
+  - family-names: "Jensen"
+    given-names: "Mark"
+    orcid: "0000-0001-9228-8838"
+  - family-names: "Cox"
+    given-names: "Alexander P."
+    orcid: "0000-0002-6969-2784"
+  - family-names: "Beverley"
+    given-names: "John"
+    orcid: "0000-0002-1118-1738"
+  - family-names: "Smith"
+    given-names: "Barry"
+    orcid: "0000-0003-1384-116X"
+  - family-names: "Otte" 
+    given-names: "J. Neil"
+    orcid: "0000-0001-7925-2064"
+date-released: "2024-04-27"
+doi: "10.48550/arXiv.2404.17758"
+repository-code: "https://github.com/CommonCoreOntology/CommonCoreOntologies"
+repository-version: "2.0"
+license: "BSD-3-Clause"
+abstract: "The Common Core Ontologies (CCO) is a suite of ontologies that collectively comprise a mid-level ontology extending from the Basic Formal Ontology (BFO)."