Fix #10816: projection column shows integer value

When you enable the projection column through
account_manage_columns_page, the view issues list only shows the integer
value of the projection field rather than the string/text value.

This fixes the problem by adding the missing print_column_projection
function that does the integer value -> enum string lookup.

core/columns_api.php

@@ -1055,6 +1055,17 @@ function print_column_eta( $p_bug, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE
 	echo '<td class="center">', get_enum_element( 'eta', $p_bug->eta ), '</td>';
 }
 
+/**
+ *
+ * @param BugData $p_bug bug object
+ * @param int $p_columns_target: see COLUMNS_TARGET_* in constant_inc.php
+ * @return null
+ * @access public
+ */
+function print_column_projection( $p_bug, $p_columns_target = COLUMNS_TARGET_VIEW_PAGE ) {
+	echo '<td class="center">', get_enum_element( 'projection', $p_bug->projection ), '</td>';
+}
+
 /**
  *
  * @param BugData $p_bug bug obect