Opensource a test tool called EditTextVariations

This CL opensouces a testing tool called EditTextVariations that has
been used internally to test IME behaviors on various
EditorInfo#inputType and EditorInfo#imeOptions.

Bug: 80039502
Test: Manually verified as follows.
 1. tapas EditTextVariations
 2. make -j
 3. adb install -r $ANDROID_TARGET_OUT_TESTCASES/EditTextVariations/EditTextVariations.apk
Change-Id: Ia87e655573c2fd1fc09d56e4af90bfb1dfd65f9b
diff --git a/tools/EditTextVariations/AndroidManifest.xml b/tools/EditTextVariations/AndroidManifest.xml
new file mode 100644
index 0000000..7694f4d
--- /dev/null
+++ b/tools/EditTextVariations/AndroidManifest.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.inputmethod.tools.edittextvariations"
+    android:versionName="0.67"
+    android:versionCode="67"
+>
+    <supports-screens android:resizeable="true" />
+    <uses-sdk
+        android:targetSdkVersion="27"
+        android:minSdkVersion="11" />
+    <application
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:allowBackup="false"
+    >
+        <activity
+            android:name=".EditTextVariations"
+            android:windowSoftInputMode="stateHidden|adjustPan"
+            android:theme="@style/defaultActivityTheme"
+            android:label="@string/app_name"
+        >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>