Update titles & messages for password enrolment flows

Show different titles and description messages when
enrolling password under various conditions:
* personal lock verus work lock
* adding a new lock versus updating existing lock
* enrolling a PIN verus password versus pattern

Add icons to options in screen lock picker.

Add an option to redirect to work lock flow if the admin
has set device-wide password requirement.

Bug: 183922696
Test: m RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.password
Change-Id: I40417b113814659d3226a44eb7f9d553386e3c58

res/layout/choose_lock_generic_biometric_header.xml

@@ -23,5 +23,4 @@
     android:minHeight="56dp"
     android:paddingStart="?android:attr/listPreferredItemPaddingStart"
     android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
-    android:text="@string/lock_settings_picker_biometric_message"
     style="@style/BiometricHeaderStyle" />

res/layout/choose_lock_password.xml

@@ -21,8 +21,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:icon="@drawable/ic_lock"
-    android:importantForAutofill="noExcludeDescendants"
-    settings:sucHeaderText="@string/lockpassword_choose_your_screen_lock_header">
+    android:importantForAutofill="noExcludeDescendants">
 
     <LinearLayout
         style="@style/SudContentFrame"

res/layout/choose_lock_pattern_common.xml

@@ -23,8 +23,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:icon="@drawable/ic_lock"
-    android:layout="@layout/sud_glif_blank_template"
-    settings:sucHeaderText="@string/lockpassword_choose_your_screen_lock_header">
+    android:layout="@layout/sud_glif_blank_template">
 
     <com.android.internal.widget.LinearLayoutWithDefaultTouchRecepient
         android:id="@+id/topLayout"