Added Citation file for allowing citation of the software

CITATION.cff

@@ -0,0 +1,56 @@
+cff-version: 1.2.0
+message: "If you use this software, please cite it as below."
+authors:
+    - family-names: "Willemsen"
+      given-names: "Floris-Jan"
+      orcid: "https://orcid.org/0000-0003-2295-8263"
+    - family-names: "Schoonhoven"
+      given-names: "Richard"
+      orcid: "https://orcid.org/0000-0003-3659-929X"
+    - family-names: "Filipovič"
+      given-names: "Jiří"
+      orcid: "https://orcid.org/0000-0002-5703-9673"
+    - family-names: "Tørring"
+      given-names: "Jacob Odgård"
+      orcid: "https://orcid.org/0000-0002-9385-7948"
+    - family-names: "van Nieuwpoort"
+      given-names: "Rob"
+      orcid: "https://orcid.org/0000-0002-2947-9444"
+    - family-names: "van Werkhoven"
+      given-names: "Ben"
+      orcid: "https://orcid.org/0000-0002-7508-3272"
+title: "Autotuning Methodology"
+version: 1.0.0
+doi: 10.5281/zenodo.1234 # TODO change
+date-released: 2024-12-18 # TODO change
+url: "https://github.com/AutoTuningAssociation/autotuning_methodology"
+preferred-citation:
+    type: article
+    authors:
+        - family-names: "Willemsen"
+          given-names: "Floris-Jan"
+          orcid: "https://orcid.org/0000-0003-2295-8263"
+        - family-names: "Schoonhoven"
+          given-names: "Richard"
+          orcid: "https://orcid.org/0000-0003-3659-929X"
+        - family-names: "Filipovič"
+          given-names: "Jiří"
+          orcid: "https://orcid.org/0000-0002-5703-9673"
+        - family-names: "Tørring"
+          given-names: "Jacob Odgård"
+          orcid: "https://orcid.org/0000-0002-9385-7948"
+        - family-names: "van Nieuwpoort"
+          given-names: "Rob"
+          orcid: "https://orcid.org/0000-0002-2947-9444"
+        - family-names: "van Werkhoven"
+          given-names: "Ben"
+          orcid: "https://orcid.org/0000-0002-7508-3272"
+    doi: "10.0000/00000" # TODO change
+    journal: "Future Generation Computer Systems"
+    month: 9 # TODO change
+    start: 1 # First page number
+    end: 10 # Last page number
+    title: " A Methodology for Comparing Optimization Algorithms for Auto-Tuning"
+    issue: 1 # TODO change
+    volume: 1 # TODO change
+    year: 2024