Add support for www.wikidata.org ("Knowledgebase 🔬")

[k3b]

Note: slightly different query url/result

• https://www.wikidata.org/w/api.php?action=query&format=xml&prop=entityterms|coordinates|info&inprop=url&generator=geosearch&ggscoord=36.45284|28.22016&ggsradius=10000&ggslimit=25

that generates

<page title="Q31833" ...>
	<entityterms>
		<label>
			<term>Aquarium of Rhodes</term>
		</label>
		<description>
			<term>
			research centre, aquarium and museum in Rhodes, Greece
			</term>
		</description>
	</entityterms>
        ...
</page>

---

<page _idx="34777" pageid="34777" ns="0" title="Q31833" index="-1" contentmodel="wikibase-item" pagelanguage="en" pagelanguagehtmlcode="en" pagelanguagedir="ltr" touched="2021-09-22T10:44:58Z" lastrevid="1501548170" length="8875" fullurl="https://www.wikidata.org/wiki/Q31833" editurl="https://www.wikidata.org/w/index.php?title=Q31833&action=edit" canonicalurl="https://www.wikidata.org/wiki/Q31833">
	<entityterms>
		<label>
			<term>Aquarium of Rhodes</term>
		</label>
		<description>
			<term>
			research centre, aquarium and museum in Rhodes, Greece
			</term>
		</description>
	</entityterms>
	<coordinates>
	<co lat="36.4571" lon="28.2207" primary="" globe="earth"/>
	</coordinates>
	<extract xml:space="preserve"/>
</page>

This is the query url used by other sites

• https://de.wikivoyage.org/w/api.php?action=query&format=xml&prop=entityterms|coordinates|info|extracts&inprop=url&generator=geosearch&ggscoord=36.45284|28.22016&ggsradius=10000&ggslimit=25&exsentences=2&explaintext&exintro

[k3b]

Will be available in next release v1.6