Add XML declaration to text right/chart left rels template

Author: EuanEdgar

lib/powerpoint/views/collision-wide/ff_trend_text_right_chart_left_rel.xml.erb

@@ -1,7 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
   <Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout" Target="../slideLayouts/slideLayout9.xml"/>
   <Relationship Id="rId2" Target="../media/<%= @image_name %>" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/image"/>
   <% @links.each_with_index do |link,index| %>
     <Relationship Id="rId<%= 100 + index %>" Target="<%= link %>" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/hyperlink" TargetMode="External"/>
   <% end %>
-  </Relationships>
+</Relationships>