Implement additional fingerprint flows in Settings.

- new onboarding flow ("locate sensor")
- changed sensor location image
- changed in-app sensor icon
- remove fingerprint animation since it caused people to
want to tap on it.
- remove enrolled fingerprint templates when switching back to "none" or "slide"
- use real in-app icon for fingerprint
- much improved layout
- basic landscape layout working
- added 250ms delay to final enrollment step so it's not so jarring
- delete is now working
- rename wired, but not functional yet

Bug 19592835

Change-Id: Ie3e73a2fc8f834f1b90e2746c4cc841216aa6031

res/xml/security_settings_fingerprint.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 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.
+-->
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
+                  xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"
+                  android:title="@string/security_settings_fingerprint_preference_title">
+
+    <PreferenceCategory
+        android:key="fingerprint_manage_category"
+        android:title="@string/fingerprint_manage_category_title">
+    </PreferenceCategory>
+
+    <PreferenceCategory
+        android:key="fingerprint_usage_category"
+        android:title="@string/fingerprint_usage_category_title">
+
+        <SwitchPreference
+            android:key="fingerprint_enable_keyguard_toggle"
+            android:title="@string/fingerprint_enable_keyguard_toggle_title"
+            android:persistent="false" />
+
+    </PreferenceCategory>
+
+</PreferenceScreen>
+