Add chips to support mime type query

* Add SearchChipViewManager
* Implement mime type query with checked chips
* Filter chips base on the derivedMimeTypes of the root
  If there is only one matched chip, hide the chip row.
* Add chip move animation

Fix: 111862054
Fix: 120895178
Test: atest DocumentsUITests
Change-Id: If37a7c092eee101306963e4aa05810a86930c693
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 9a885d1..bc3ab5f 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -79,4 +79,9 @@
 
     <dimen name="root_info_header_height">48dp</dimen>
     <dimen name="root_info_header_horizontal_padding">24dp</dimen>
+
+    <dimen name="search_chip_group_margin">8dp</dimen>
+    <dimen name="search_chip_spacing">8dp</dimen>
+    <dimen name="search_chip_icon_padding">4dp</dimen>
+
 </resources>