WMS: restore NASA GIBS (#1756)

Thanks!

gui/wxpython/web_services/dialogs.py

@@ -71,6 +71,11 @@ class WSDialogBase(wx.Dialog):
                 "",
                 "",
             ],
+            "NASA GIBS WMTS": [
+                "http://gibs.earthdata.nasa.gov/wmts/epsg4326/best/wmts.cgi",
+                "",
+                "",
+            ],
             "tiles.maps.eox.at (Sentinel-2)": [
                 "https://tiles.maps.eox.at/wms",
                 "",