Doxyfile: Allow "struct" in brief description

Author: adazem009

Doxyfile

@@ -128,6 +128,7 @@ REPEAT_BRIEF           = YES
 # specifies, contains, represents, a, an and the.
 
 ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name struct" \
                          "The $name interface" \
                          "The $name widget" \
                          "The $name file" \