HERE add traffic tiles to normal and hybrid (#332)

+ normalDayTraffic 
add traffic to normal day tiles (in same layer)

+ hybridDayTraffic 
add traffic to hybrid day tiles (in same layer)

leaflet-providers.js

@@ -489,6 +489,13 @@
 				normalDayGreyMobile: 'normal.day.grey.mobile',
 				normalDayTransit: 'normal.day.transit',
 				normalDayTransitMobile: 'normal.day.transit.mobile',
+				normalDayTraffic: {
+					options: {
+						variant: 'normal.traffic.day',
+						base: 'traffic',
+						type: 'traffictile'
+					}
+				},
 				normalNight: 'normal.night',
 				normalNightMobile: 'normal.night.mobile',
 				normalNightGrey: 'normal.night.grey',
@@ -539,6 +546,13 @@
 						variant: 'hybrid.grey.day'
 					}
 				},
+				hybridDayTraffic: {
+					options: {
+						variant: 'hybrid.traffic.day',
+						base: 'traffic',
+						type: 'traffictile'
+					}
+				},
 				pedestrianDay: 'pedestrian.day',
 				pedestrianNight: 'pedestrian.night',
 				satelliteDay: {