Action-1708, Action-1709: Proposal for a Figure Role

I reviewed this with with Steve Faulkner. It may require some wordsmithing
but we are good to go. Steve is also ok with not having a caption role.


      figure
           A perceivable section of content which supports the main
      document, and should be easily perceivable regardless of its position
      in the layout that can contain a graphical document, an image or
      other content such as code snippets or example text.

      Authors SHOULD provide a reference to the figure from the main text,
      but the figure need not be displayed at the same location as the
      referencing element."

      A figure MAY have an associated description representing a caption
      and may have an associated label.

      Assistive technologies SHOULD enable users to quickly navigate to
      figures. Mainstream user agents MAY enable users to quickly navigate
      to figures.

      Is abstract: 			False
      Superclass Role:	 	section
      Subclass Roles:
      Inherited States and Properties: (inherits from section)
      Name From: 			author
      Accessible Name Required: 	False


Rich Schwerdtfeger