Add File provider config to demo app for testing

Author: AdamGrzybkowski

demo-app/src/main/AndroidManifest.xml

@@ -53,6 +53,15 @@
                     android:scheme="wp-oauth-test" />
             </intent-filter>
         </activity>
+        <provider
+            android:name=".DemoFileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:grantUriPermissions="true"
+            android:exported="false">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/filepaths" />
+        </provider>
     </application>
 
 </manifest>

demo-app/src/main/java/com/gravatar/demoapp/DemoFileProvider.kt

@@ -0,0 +1,5 @@
+package com.gravatar.demoapp
+
+import androidx.core.content.FileProvider
+
+internal class DemoFileProvider : FileProvider(R.xml.filepaths)

demo-app/src/main/res/xml/filepaths.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <cache-path
+        name="demoapp_images"
+        path="demoapp/" />
+</paths>