new launch images for iphone6/6plus

contrib/mobile/iOS/Onelab/Images_BBEMG.xcassets/LaunchImage.launchimage/Contents.json

 {
   "images" : [
+    {
+      "extent" : "full-screen",
+      "idiom" : "iphone",
+      "subtype" : "736h",
+      "filename" : "splash1242x2208.png",
+      "minimum-system-version" : "8.0",
+      "orientation" : "portrait",
+      "scale" : "3x"
+    },
+    {
+      "extent" : "full-screen",
+      "idiom" : "iphone",
+      "subtype" : "736h",
+      "filename" : "splash2208x1242.png",
+      "minimum-system-version" : "8.0",
+      "orientation" : "landscape",
+      "scale" : "3x"
+    },
+    {
+      "extent" : "full-screen",
+      "idiom" : "iphone",
+      "subtype" : "667h",
+      "filename" : "splash750x1334.png",
+      "minimum-system-version" : "8.0",
+      "orientation" : "portrait",
+      "scale" : "2x"
+    },
     {
       "orientation" : "portrait",
       "idiom" : "iphone",
@@ -54,4 +81,4 @@
     "version" : 1,
     "author" : "xcode"
   }
-}
\ No newline at end of file
+}