WIP: interaction IRMT <--> GeoViewer

[ptormene]

See also https://gitlab.openquake.org/openquake/oq-geoviewer/-/merge_requests/301

• Added connection settings for the GeoViewer
• Added a GeoViewer menu group and an action to retrieve the list of available projects

TODO:

• display the list of projects properly
• download selected project
• dialog to set metadata before uploading (done for license)
• check presence of >=1 layer and validity of geometries
• check that each layer has a valid CRS
• check that the project has a valid CRS
• consolidate project
• upload project
• assign the selected license to the uploaded project (NOTE: we should first fix the api to manage metadata, then assign the license to the project before uploading?)
• prevent creating a project with an already existing name
• when uploading, set a flag to automatically create a map with the uploaded layer
• check if there are basemaps outside a dedicated group
• fix case of consolidating an already consolidated project (likely issue with already created gpkg)
• add warnings if project owsServiceCapabilities or wmsExtent are disabled
• add warning if QGIS Server properties "Add geometry to feature response" and "Segmentize feature info geometry" are unchecked
• display a dialog to set up project variables, displaying the current values and proposing changes
• make sure to save the project before re-consolidating it, otherwise it looks like it will re-send the previously saved one
• check "auto-create-map" by default
• when downloading a project, also download basemaps (this will probably need changes GeoViewer side)
• when downloading a project, also properly store metadata (coming from geoviewer as metadata.txt)
• when listing available projects, display only the downloadable ones (it's already like this for normal users, but admin users see all projects)
• when uploading basemaps, also collect info about min and max zoom