Input language switching. Bug: 2331173

New feature to enable fast switching between input languages for
multilingual users. Keyboard settings lets you select a bunch of
languages to switch between from the Latin IME.

Use the Globe icon to toggle between languages.

Needs more work and some layout changes in specialized keyboards.

Also added a Russian keyboard (needs some pixel TLC at the right edge).
diff --git a/res/xml-fr/kbd_qwerty.xml b/res/xml-fr/kbd_qwerty.xml
index d47042e..7c1b24b 100644
--- a/res/xml-fr/kbd_qwerty.xml
+++ b/res/xml-fr/kbd_qwerty.xml
@@ -102,7 +102,8 @@
                 android:popupKeyboard="@xml/kbd_popup_template"
                 android:popupCharacters=""
                 android:keyWidth="20%p" android:keyEdgeFlags="left"/>
-        <Key android:keyLabel="," android:keyWidth="10%p" />
+        <Key android:codes="@integer/key_f1" android:keyIcon="@drawable/sym_keyboard_globe"
+                android:keyWidth="10%p"/>
         <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" 
                 android:iconPreview="@drawable/sym_keyboard_feedback_space"
                 android:keyWidth="40%p" android:isRepeatable="true"/>
@@ -118,9 +119,7 @@
                 android:popupKeyboard="@xml/kbd_popup_template"
                 android:popupCharacters=""
                 android:keyWidth="20%p" android:keyEdgeFlags="left"/>
-        <Key android:keyLabel="@string/popular_domain_0"
-                android:keyOutputText="@string/popular_domain_0"
-                android:popupKeyboard="@xml/popup_domains"
+        <Key android:codes="@integer/key_f1" android:keyIcon="@drawable/sym_keyboard_globe"
                 android:keyWidth="15%p"/>
         <Key android:keyLabel="/" android:keyWidth="15%p"/>
         <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" 
@@ -138,11 +137,9 @@
                 android:popupKeyboard="@xml/kbd_popup_template"
                 android:popupCharacters=""
                 android:keyWidth="20%p" android:keyEdgeFlags="left"/>
-        <Key android:keyLabel="\@" android:keyWidth="15%p"/>
-        <Key android:keyLabel="@string/popular_domain_0"
-                android:keyOutputText="@string/popular_domain_0"
-                android:popupKeyboard="@xml/popup_domains"
+        <Key android:codes="@integer/key_f1" android:keyIcon="@drawable/sym_keyboard_globe"
                 android:keyWidth="15%p"/>
+        <Key android:keyLabel="\@" android:keyWidth="15%p"/>
         <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space" 
                 android:iconPreview="@drawable/sym_keyboard_feedback_space"
                 android:keyWidth="15%p" android:isRepeatable="true"/>
@@ -158,7 +155,8 @@
                 android:popupKeyboard="@xml/kbd_popup_template"
                 android:popupCharacters=""
                 android:keyWidth="20%p" android:keyEdgeFlags="left"/>
-        <Key android:keyLabel="," android:keyWidth="10%p"/>
+        <Key android:codes="@integer/key_f1" android:keyIcon="@drawable/sym_keyboard_globe"
+                android:keyWidth="10%p"/>
         <Key android:codes="32" android:keyIcon="@drawable/sym_keyboard_space"
                 android:iconPreview="@drawable/sym_keyboard_feedback_space"
                 android:keyWidth="40%p" android:isRepeatable="true"/>