Bug 1672 - Generated javadoc contains symbols of javadoc comment tags

- added extension method into BaseTemplate to replace javadoc comment tags
  in description:
  used &#42;&#47; instaed of */

Change-Id: I754812fac0be45d037fe3a65c60c63c11150b5c8
Signed-off-by: Ladislav Borak <lborak@cisco.com>
Merge "Bug 1672 - Generated javadoc contains symbols of javadoc comment tags"