Add PunctuationSuggestions class

This change must be checked in together with I366c477516.

Bug: 12640318
Change-Id: I8d3864b9d9649c9e3306e82b01a6327b11281b1f
diff --git a/java/res/values/config-spacing-and-punctuations.xml b/java/res/values/config-spacing-and-punctuations.xml
index 2f52edd..5b2918f 100644
--- a/java/res/values/config-spacing-and-punctuations.xml
+++ b/java/res/values/config-spacing-and-punctuations.xml
@@ -21,6 +21,8 @@
     <!-- TODO: these settings depend on the language. They should be put either in the dictionary
          header, or in the subtype maybe? -->
     <!-- Symbols that are suggested between words -->
+    <!-- TODO: Use !text resources to merge LTR and RTL punctuations. -->
+    <!-- TODO: We should have different punctuations list for tablet. -->
     <string name="suggested_punctuations" translatable="false">!,?,\\,,:,;,\",(,),\',-,/,@,_</string>
     <!-- Symbols that are normally preceded by a space (used to add an auto-space before these) -->
     <string name="symbols_preceded_by_space" translatable="false">([{&amp;</string>