Adding utility class to load customization resources for easier prototype

Also adding support for grouping multiple plugins in same APK using process name

To customize resources update the defination of dymanic_resources in config.xml:
    <array name="dynamic_resources">
        <item>@color/delete_target_hover_tint</item>
        <item>@integer/config_folderDelay</item>
        <item>@dimen/all_apps_action_spacing</item>
        <item>@fraction/container_margin</item>
    </array>

Change-Id: I79c08845464510af96b16d375b424ad914657f39
diff --git a/res/values/config.xml b/res/values/config.xml
index 2a1f6f7..0dfed97 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -114,4 +114,7 @@
 
     <!-- Recents -->
     <item type="id" name="overview_panel"/>
+
+    <!-- Configuration resources -->
+    <array name="dynamic_resources"> </array>
 </resources>