Add UI for insertion in FilmStripView.

Change-Id: Iff389525e3811c5018365b6e6c3b9f8b95b9da9a
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index f2ad88f..06cd5c7 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -102,4 +102,5 @@
     <dimen name="capture_margin_right">16dip</dimen>
     <dimen name="capture_margin_top">16dip</dimen>
     <dimen name="camera_controls_size">0dip</dimen>
+    <dimen name="camera_film_strip_gap">32dip</dimen>
 </resources>