Add ignf aerial pictures and base map (#636)

* add ignf layers

* removes ignf-boundaries

* Assign France bbox to IGNF layers

but don't restrict bounds because world wide coverage in lower zooms

Co-authored-by: Sylvain Lafay <sylvain.lafay@gmail.fr>
Co-authored-by: Norbert Renner <norbert.renner@gmx.de>

layers/config/geometry.js

@@ -1444,6 +1444,34 @@ BR.confLayers.switzerlandPadded = {
     ]
 };
 
+BR.confLayers.franceBbox = {
+    "type": "Polygon",
+    "coordinates": [
+        [
+            [
+                -6.50391,
+                40.9799
+            ],
+            [
+                9.84375,
+                40.9799
+            ],
+            [
+                9.84375,
+                51.2894
+            ],
+            [
+                -6.50391,
+                51.2894
+            ],
+            [
+                -6.50391,
+                40.9799
+            ]
+        ]
+    ]
+};
+
 // osmapa.pl (1017): manually derived from z9-z11, no worldwide tiles >z13, 
 // but unclear because of general issues at z14+z15 as of 06/2019
 BR.confLayers.osmapaPl = {

layers/config/overrides.js

@@ -150,7 +150,16 @@ BR.confLayers.getPropertyOverrides = function() {
             'mapUrl': 'http://www.geodatenzentrum.de/geodaten/gdz_rahmen.gdz_div?gdz_spr=deu&gdz_user_id=0&gdz_akt_zeile=5&gdz_anz_zeile=1&gdz_unt_zeile=41',
             'worldTiles': true // World -z9, Europe -z14
         },
-
+        'ignf-aerial': {
+            'country_code': 'FR',
+            'mapUrl': 'https://www.geoportail.gouv.fr/carte?c={lon},{lat}&z={zoom}&l0=ORTHOIMAGERY.ORTHOPHOTOS::GEOPORTAIL:OGC:WMTS(1)&permalink=yes',
+            'worldTiles': true // -z12
+        },
+        'ignf-map': {
+            'country_code': 'FR',
+            'mapUrl': 'https://www.geoportail.gouv.fr/carte?c={lon},{lat}&z={zoom}&l0=GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2::GEOPORTAIL:OGC:WMTS(1)&permalink=yes',
+            'worldTiles': true // -z7
+        },
         'OpenStreetMap-turistautak': {
             'nameShort': 'OSM Turistautak',
             'mapUrl': 'https://turistautak.openstreetmap.hu/?zoom={zoom}&lat={lat}&lon={lon}&layers=0B00F'

layers/config/tree.js

@@ -47,6 +47,12 @@ BR.confLayers.tree = {
                 ]
             },
             'topplus-open',
+            {
+                'FR': [
+                    'ignf-aerial',
+                    'ignf-map',
+                ]
+            },
             {
                 'IL': [
                     'Israel_Hiking',