Added --addMissingColours / --addMissingColor support into osgconv which provides a mechansim for adding in a white colour where none previously existed.  This solves the problem that exists on some databases where no colour is present, causing the colour to be inherited randomly.
Added --addMissingColours / --addMissingColor support into osgconv which
provides a mechansim for adding in a white colour where none previously
existed.  This solves the problem that exists on some databases where
no colour is present, causing the colour to be inherited randomly.


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@3910 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg