small omissions in base_properties

[John W. Eaton]

On  4-Dec-2007, Shai Ayal wrote:

| This patch was obsoleted by the change at 2007-11-30 by jwe.
| This is a new patch which applies to the newer version of the file.
| 
| The addition of color property to axes was done by David (much better
| than my sloppy addition).
| I will send in a patch for adding a color property for figure in another thread
| 
| Shai
| 
| 
| 2007-12-04  Shai Ayal  <shaiay at users.sourceforge.net>
| 
|          * graphics.h.in (class base_property): add missing get
| functions for type,
|          __modified__ and __myhandle__

I added these functions but used the names

  get_type
  is_modified
  get___myhandle__

Thanks,

jwe