Add popupKeyboardTemplate attribute to Keyboard

This change
- introduces the popupKeyboardTemplate attribute of Keyboard to
  specify XML Keyboard file for popup mini keyboard.
- introduces the maxPopupKeyboardColumn attribute of Keyboard to
  specify the maximum column of popup mini keyboard.
- changes the content format of the popupCharacters attribute of Key.
  It now represents keyLabel, codes and keyTextOutput of each key of
  popup mini keyboard using CSV format.

Bug: 2214959
Change-Id: I539e310f7e38a049ee193de0b4ad5d7afdce37b1
diff --git a/java/res/values-xlarge/config.xml b/java/res/values-xlarge/config.xml
index 0a1d4e4..26c23dd 100644
--- a/java/res/values-xlarge/config.xml
+++ b/java/res/values-xlarge/config.xml
@@ -19,5 +19,12 @@
 -->
 
 <resources>
+    <bool name="config_enable_show_settings_key_option">false</bool>
+    <bool name="config_enable_show_subtype_settings">false</bool>
+    <bool name="config_enable_show_voice_key_option">false</bool>
+    <bool name="config_candidate_highlight_font_color_enabled">false</bool>
+    <!-- Whether or not Popup on key press is enabled by default -->
+    <bool name="config_default_popup_preview">false</bool>
     <string name="config_text_size_of_language_on_spacebar">medium</string>
+    <integer name="config_max_popup_keyboard_column">9</integer>
 </resources>