Add default references for English Birth, Marriage and Death certific…

…ates.

Note 1: In some cases the default reference fields are also included as heading fields. This is deliberate. If the existing heading fields are removed, any existing data in these fields will no longer display.

Form/form_gb.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <forms>
- <form id='UKBirth' type='Birth' title='English Birth Certificate'>
+ <form id='UKBirth' type='Birth' title='English Birth Certificate' reference='Registration District: , Registration Sub-District: , Register Book of Births Number: , Entry Number: '>
  <heading>
  <_attribute>Certificate Number</_attribute>
  </heading>
@@ -58,7 +58,7 @@
  </column>
  </section>
  </form>
- <form id='UKMarriage' type='Marriage' title='English Marriage Certificate'>
+ <form id='UKMarriage' type='Marriage' title='English Marriage Certificate' reference='Registration District: , Register Book of Marriages Number: , Entry Number: '>
  <heading>
  <_attribute>Certificate Number</_attribute>
  </heading>
@@ -119,7 +119,7 @@
  </column>
  </section>
  </form>
- <form id='UKDeath' type='Death' title='English Death Certificate'>
+ <form id='UKDeath' type='Death' title='English Death Certificate' reference='Registration District: , Registration Sub-District: , Register Book of Deaths Number: , Entry Number: '>
  <heading>
  <_attribute>Certificate Number</_attribute>
  </heading>