Merge branch '95-send-spots-to-xota' into 2.0-pre

# Conflicts:
#	README.md
#	core/config.py
#	server/handlers/api/addspot.py
#	server/handlers/api/lookups.py
#	server/handlers/api/options.py
#	server/webserver.py
#	spothole.py
#	static/apidocs/openapi.yml

providers/spot/wwff.py

@@ -39,3 +39,11 @@ class WWFF(HTTPSpotProvider):
             # that for us.
             new_spots.append(spot)
         return new_spots
+
+    def can_submit_spot(self, sig):
+        return sig == "WWFF"
+
+    def submit_spot(self, spot, credentials):
+        # TODO: Implement. Spotting to WWFF should be possible, need to look up the Spotline docs or copy approach from
+        # PoLo. Either way I think we need an API key for the app (but maybe not for the user?)
+        raise NotImplementedError("WWFF upstream spot submission is not yet implemented")