Added dependencies required for ionic storage.

package.json

@@ -24,8 +24,10 @@
     "@ionic-native/splash-screen": "^5.0.0",
     "@ionic-native/status-bar": "^5.0.0",
     "@ionic/angular": "^4.7.1",
+    "@ionic/storage": "^2.2.0",
     "cordova-android": "8.1.0",
     "cordova-plugin-geolocation": "^4.0.2",
+    "cordova-sqlite-storage": "^3.4.0",
     "core-js": "^2.5.4",
     "rxjs": "~6.5.1",
     "tslib": "^1.9.0",
@@ -74,10 +76,11 @@
         "ANDROID_SUPPORT_ANNOTATIONS_VERSION": "27.+"
       },
       "cordova-plugin-ionic-keyboard": {},
-      "cordova-plugin-geolocation": {}
+      "cordova-plugin-geolocation": {},
+      "cordova-sqlite-storage": {}
     },
     "platforms": [
       "android"
     ]
   }
-}
\ No newline at end of file
+}