change tab bar icons and image place holder icon

pass/Assets.xcassets/Lock.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "Password-50.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "Password-75.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

pass/Assets.xcassets/PasswordImagePlaceHolder.imageset/Contents.json

@@ -2,17 +2,16 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "PasswordImagePlaceHolder.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "PasswordImagePlaceHolder@2x.png",
+      "filename" : "iOS App Icon Shape_50.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "PasswordImagePlaceHolder@3x.png",
+      "filename" : "iOS App Icon Shape-100.png",
       "scale" : "3x"
     }
   ],

pass/Assets.xcassets/Settings.imageset/Contents.json

@@ -0,0 +1,22 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "Settings-50.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "Settings-75.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}