Please review the fix for IZ 187266 (Add dbxgui to friends list of cnd.model.services)

Hi,

please review fix for IZ 187266 (Add dbxgui to friends list of 
cnd.model.services).

Changeset: http://hg.netbeans.org/release69/rev/0fcda5147f0a

The problem is that Solaris Studio debugger package is not a friend of 
one of CNDs packages.
And thus Solaris Studio would require implementation dependency on this 
package.
It does not affect anything in Netbeans.
Fix is reviewed by Vladimir Voskresensky.

I have already pushed it into release69 because it is critical for 
Solaris Studio to have it in 6.9.

Thanks,
Egor