improve dedup doc : default params

[Makio64]

Is your feature request related to a problem? Please describe.
Improve the documentation of dedup function to specify the property dedup by default :

		PropertyType.ACCESSOR,
		PropertyType.MESH,
		PropertyType.TEXTURE,
		PropertyType.MATERIAL,
		PropertyType.SKIN,

Describe alternatives you've considered
Alternative : also add it to DedupOptions

Additional context
While reading the documentation page of dedup, I wasnt sure and went to the source code to double check, I think it can be easily avoid for futur users.

[donmccurdy]

I think greendoc (https://github.com/donmccurdy/greendoc) does not yet support documentation of default parameters, so the feature would need to be added there first.