Fetch feature info in application/geo+json format

[johnnyblasta]

Closes #1497

Example config:

  "source": {
    "local": {
      "url": "http://localhost/geoserver/wms"
    },
    "lstY-strandskydd": {
      "url": "https://ext-geodata-lokala.lansstyrelsen.se/arcgis/services/LSTY/lsty_wms_strandskydd/MapServer/WMSServer"
    }
  },
  "layers": [
    {   "name": "0",
            "title": "LST Strandskyddsdispenser",
            "queryable": true,
            "visible": false,
            "type": "WMS",
            "group": "root",
            "source": "lstY-strandskydd",
            "style": "Strandskyddsdispenser",
            "infoFormat": "application/geo+json"
        },

[Grammostola]

Hi, I think it looks pretty good, well done. One bit of variability, so far isolated to one arcgis server, is:

        <Format>application/vnd.esri.wms_raw_xml</Format>
        <Format>application/vnd.esri.wms_featureinfo_xml</Format>
        <Format>application/vnd.ogc.wms_xml</Format>
        <Format>application/geojson</Format>
        <Format>text/xml</Format>
        <Format>text/html</Format>
        <Format>text/plain</Format>

whereas your proposed change works well when it looks like so:

        <Format>application/vnd.esri.wms_raw_xml</Format>
        <Format>application/vnd.esri.wms_featureinfo_xml</Format>
        <Format>application/vnd.ogc.wms_xml</Format>
        <Format>application/geo+json</Format>
        <Format>text/xml</Format>
        <Format>text/html</Format>
        <Format>text/plain</Format>

I shall query whether the singular arcgis server has any relevant local configuration (though I can't quite see how that would be the case). Maybe your proposed change could recognize both of the above variants if both are valid.

[johnnyblasta]

Hi, I think it looks pretty good, well done. One bit of variability, so far isolated to one arcgis server, is:

        <Format>application/vnd.esri.wms_raw_xml</Format>
        <Format>application/vnd.esri.wms_featureinfo_xml</Format>
        <Format>application/vnd.ogc.wms_xml</Format>
        <Format>application/geojson</Format>
        <Format>text/xml</Format>
        <Format>text/html</Format>
        <Format>text/plain</Format>

whereas your proposed change works well when it looks like so:

        <Format>application/vnd.esri.wms_raw_xml</Format>
        <Format>application/vnd.esri.wms_featureinfo_xml</Format>
        <Format>application/vnd.ogc.wms_xml</Format>
        <Format>application/geo+json</Format>
        <Format>text/xml</Format>
        <Format>text/html</Format>
        <Format>text/plain</Format>

I shall query whether the singular arcgis server has any relevant local configuration (though I can't quite see how that would be the case). Maybe your proposed change could recognize both of the above variants if both are valid.

These variants are probably exactly the same in the response, but should be requested with the specific format so the code has to be modified a bit.

[johnnyblasta]

Made a fix that should handle the varying string for the same format. @Grammostola can you test it on the server?

[Grammostola]

Looks good and works well