OF-159: Add an s2s testing feature (#873)
OF-159: Add an s2s testing feature (#873)

Added some extra field details on s2s certificates.
speedy01/Openfire,akrherz/Openfire,speedy01/Openfire,GregDThomas/Openfire,Gugli/Openfire,guusdk/Openfire,GregDThomas/Openfire,igniterealtime/Openfire,guusdk/Openfire,GregDThomas/Openfire,GregDThomas/Openfire,guusdk/Openfire,speedy01/Openfire,GregDThomas/Openfire,akrherz/Openfire,guusdk/Openfire,igniterealtime/Openfire,akrherz/Openfire,Gugli/Openfire,Gugli/Openfire,akrherz/Openfire,igniterealtime/Openfire,speedy01/Openfire,speedy01/Openfire,igniterealtime/Openfire,Gugli/Openfire,akrherz/Openfire,Gugli/Openfire,guusdk/Openfire,igniterealtime/Openfire