LexiconImportForm: add an util to fetch Gogocarto API

[srosset81]

Right now with LexiconImportForm and LexiconCreateDialog we can import an util to fetch from Wikidata or ESCO. But what about adding an util to import from Gogocarto APIs ? For example, to import Transiscope items, we could have a code like this:

<LexiconImportForm
      fetchLexicon={fetchGogocarto('https://transiscope.gogocarto.fr')}
      selectData={data => ({
        'pair:label': data.label,
        'pair:comment': data.summary,
        'http://www.w3.org/ns/prov#wasDerivedFrom': data.uri,
      })}
      redirect="show"
    />

This could be used by CDLT when actors create new organizations or places.

Ping @simonLouvet

[simonLouvet]

@srosset81 No objection to using the GoGoCarto API to import a resource. I think it's quite relevant.