Add TSV parser and minimal UI for file selection dialog

app/src/main/AndroidManifest.xml

@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.illusionware.npsbrowser">
-
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
     <application
         android:allowBackup="true"
         android:icon="@mipmap/nps_icon"
@@ -9,7 +11,7 @@
         android:roundIcon="@mipmap/nps_icon_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".activities.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />