Add helpers for links into the Flys wiki with optional SSO support. If a SAML ticket is known for the current user, a HTML form is generated so tha the Ticket is used to authenticate the Wiki access, otherwise a plain Link is generated similar to what the UI used before the SSO links. Part of flys/issue1265

SYMBOLSET
SYMBOL
  NAME 'point'
  TYPE ELLIPSE
  POINTS
    1 1
  END
  FILLED TRUE
END
SYMBOL
  NAME "square"
  TYPE VECTOR
  POINTS
    0 0
    0 1
    1 1
    1 0
    0 0
  END
  FILLED TRUE
END
END