Merge pull request #21012 from guerler/add_freq_json

Add freq.json datatype subclass

Author: mvdbeek

lib/galaxy/config/sample/datatypes_conf.xml.sample

@@ -142,6 +142,7 @@
     <datatype extension="binary" type="galaxy.datatypes.binary:Binary" mimetype="application/octet-stream" max_optional_metadata_filesize="1048576"/>
     <datatype extension="d3_hierarchy" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="true"/>
     <datatype extension="cytoscapejson" type="galaxy.datatypes.text:CytoscapeJson" mimetype="application/json" display_in_upload="true" description="Cytoscape JSON format for network visualization, typically containing 'nodes' and 'edges' in a JSON object." description_url="https://js.cytoscape.org/#notation/elements-json" />
+    <datatype extension="freq.json" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="True" description="A JSON-formatted array of objects containing longitude, latitude, and frequency attributes."/>
     <datatype extension="imgt.json" type="galaxy.datatypes.text:ImgtJson" mimetype="application/json" display_in_upload="True"/>
     <datatype extension="geojson" type="galaxy.datatypes.text:GeoJson" mimetype="application/json" display_in_upload="True">
       <visualization plugin="openlayers" />