update client invoice format

html/bts_client_invoice_template.html

 				<td class="invoice_summary_header" colspan=1>Name of Service</td>
 				<td class="invoice_summary_header" colspan=2>NDIS code</td>
 				<td class="invoice_summary_header" colspan=1>Total Hours</td>
-				<td class="invoice_summary_header" colspan=3> </td>
+				<td class="invoice_summary_header" colspan=1>Unit Price </td>
+				<td class="invoice_summary_header" colspan=2>Total </td>
 				<td></td>
 			</tr>			
 			{{/has_summary}}
 				<td colspan=1>{{tos}}</td>
 				<td colspan=2>{{ndis}}</td>
 				<td colspan=1>{{Hours}}</td>
-				<td colspan=3> </td>
+				<td colspan=1>{{unitprice}} </td>
+				<td colspan=2>{{tos_total}} </td>
 				<td></td>
 			</tr>
 			{{/summary}}
 				<td class="invoice_summary_header" colspan=1>Name of Service</td>
 				<td class="invoice_summary_header" colspan=2>NDIS code</td>
 				<td class="invoice_summary_header" colspan=1>Total Hours</td>
-				<td class="invoice_summary_header" colspan=3> </td>
+				<td class="invoice_summary_header" colspan=1>Unit Price</td>
+				<td class="invoice_summary_header" colspan=2>Sum: {{overall_total}} </td>
 				<td></td>
 			<tr>
 				<td colspan=9 class=invoice_summary>