added CITATION.cff file for scientific metadata

CITATION.cff

+# This CITATION.cff file was generated with cffinit.
+# Visit https://bit.ly/cffinit to generate yours today!
+
+cff-version: 1.2.0
+title: geo-location-service
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+  - given-names: Lukas Hubert
+    family-names: Leufen
+    orcid: 'https://orcid.org/0000-0003-4154-3397'
+  - given-names: Niklas
+    family-names: Selke
+    email: n.selke@fz-juelich.de
+    orcid: 'https://orcid.org/0000-0002-9954-2250'
+    affiliation: Forschungszentrum Jülich
+  - given-names: Jannik
+    family-names: Streitberg
+    email: j.streitberg@fz-juelich.de
+    orcid: 'https://orcid.org/0000-0003-0980-1843'
+  - given-names: Martin
+    family-names: Ingenbleek
+    email: m.ingenbleek@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+  - given-names: Berkant
+    family-names: Palazoglu
+    email: b.palazoglue@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+  - given-names: Tom
+    family-names: 'Ohlmeyer '
+    email: t.ohlmeyer@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+    orcid: 'https://orcid.org/0009-0004-3631-1801'
+  - given-names: Sabine
+    family-names: Schröder
+    email: s.schröder@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+    orcid: 'https://orcid.org/0000-0002-0309-8010'
+  - given-names: Martin
+    family-names: Schultz
+    email: m.schultz@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+    orcid: 'https://orcid.org/0000-0003-3455-774X'
+  - given-names: Jan
+    family-names: Vogelsang
+    email: j.vogelsang@fz-juelich.de
+    affiliation: Forschungszentrum Jülich
+    orcid: 'https://orcid.org/0000-0003-2336-6630'
+repository-code: 'https://gitlab.jsc.fz-juelich.de/esde/toar-data/geopeas'
+license: MIT
+version: 0.9.0