Adds ability score picker.

Android/app/src/main/res/layout/component_ability_score_picker.xml

@@ -5,7 +5,6 @@
     android:layout_height="match_parent"
     android:orientation="horizontal"
     tools:context=".ui.components.AbilityScorePicker">
-    <!-- // TODO: style this control to look less awful by default -->
 
     <TextView
         android:id="@+id/label"
@@ -17,4 +16,4 @@
         android:id="@+id/spinner"
         android:layout_width="wrap_content"
         android:layout_height="match_parent" />
-</merge>
+</merge>