Support for greek numerals

References:
  http://www.spinellis.gr/blog/20090625/ (Greek Numerals in OpenOffice.org)

  http://user.services.openoffice.org/en/forum/viewtopic.php?f=7&t=7269
  ([Issue+Workaround] Custom Numbering in Bullets and Numbering)

  http://www.opengr.net/forum/viewtopic.php?f=13&t=51

And the references transitively mentioned in the above.

This functionality was implemented during Greek Coding Camp 2009.

NOTE: the present implementation uses the (modern) two-letter version of '6'
(sigma taf) instead of the ancient greek / katharevousa version that uses
the 'stigma' character.

OTOH, we do use the katharevousa 'qoppa' and 'sampi' because there is no
standard modern version that replaces them. If you have that many bullets
so that these symbols are needed, then you had it comin' anyway :p

Author: Pantelis Koukousoulas <pktoss@gmail.com>
License: LGPLv3 / MPL
Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com>

offapi/com/sun/star/style/NumberingType.idl

@@ -471,6 +471,20 @@ published constants NumberingType
       */
     const short CHARS_CYRILLIC_LOWER_LETTER_N_SR = 51;
 
+    //-------------------------------------------------------------------------
+    /** Numbering in Greek alphabet upper case letters
+
+        @since OOo 3.3
+     */
+    const short CHARS_GREEK_UPPER_LETTER = 52;
+
+    //-------------------------------------------------------------------------
+    /** Numbering in Greek alphabet lower case letters
+
+        @since OOo 3.3
+     */
+    const short CHARS_GREEK_LOWER_LETTER = 53;
+
 };
 
 //=============================================================================