Playstore permissions declaration (#12)

* Declaration builder created

Took 2 hours 34 minutes


Took 2 minutes

* - Fixed android S issues
 - Dialog box completed
 - Widget creation activity UI test added

Took 1 hour 53 minutes

* - Popup for google playstore permissions added
- UI tests with stubbing added
- linting clean ups
- changes to fragments and base fragment

Took 3 hours 57 minutes

app/src/main/res/values/strings.xml

@@ -14,4 +14,6 @@
     <string name="min">Min:</string>
     <string name="max">Max:</string>
     <string name="average">Average:</string>
+    <string name="cancel">Cancel</string>
+    <string name="ok">OK</string>
 </resources>