Add geonearestpoint operator

plugins/tiddlywiki/geospatial/tests/operators/geonearestpoint.tid

@@ -0,0 +1,24 @@
+title: $:/plugins/tiddlywiki/geospatial/tests/geonearestpoint
+description: geonearestpoint operator
+type: text/vnd.tiddlywiki-multiple
+tags: [[$:/tags/wiki-test-spec]]
+
+title: Output
+
+\whitespace trim
+<$let
+	oxford={{{ [geopoint[51.751944],[-1.257778]jsonset[id],[Oxford]] }}}
+	winchester={{{ [geopoint[51.0632],[-1.308]jsonset[id],[Winchester]] }}}
+	new-york={{{ [geopoint[40.730610],[-73.935242]jsonset[id],[New York]] }}}
+>
+
+<$text text={{{ =[<oxford>] =[<winchester>] +[geonearestpoint<new-york>jsonget[id]] }}}/>,
+<$text text={{{ =[<oxford>] =[[Not a point]] +[geonearestpoint<new-york>jsonget[id]] }}}/>,
+<$text text={{{ =[[Not a point]] +[geonearestpoint<new-york>jsonget[id]] }}}/>
+
+</$let>
+
++
+title: ExpectedResult
+
+<p>Winchester,Oxford,</p>