Add LICENSE header

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,3 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright 2022 Tarsin Norbin
+  ~
+  ~ This file is part of EhViewer
+  ~
+  ~ EhViewer is free software: you can redistribute it and/or modify it
+  ~ under the terms of the GNU GeneralPublic License as published
+  ~ by the Free Software Foundation,either version 3 of the License, or
+  ~ (at your option) any later version.
+  ~
+  ~ EhViewer is distributed in the hope that it will be useful, but WITHOUT
+  ~ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  ~ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+  ~
+  ~ You should have received a copy of the GNU General Public License along with EhViewer.
+  ~ If not, see <https://www.gnu.org/licenses/>.
+  -->
+
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="108dp"
     android:height="108dp"