Added Stat activity, helpers and cleanup

app/build.gradle

@@ -52,6 +52,7 @@ dependencies {
 
     implementation 'com.caverock:androidsvg-aar:1.4'
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
+    implementation 'com.github.PhilJay:MPAndroidChart:v3.1.0'
     implementation 'com.mikepenz:aboutlibraries:10.10.0'
 
 }