ToPropertyMany Trait

[jdeepee]

Outline

• Implementable on user structs.
• Should return Vec<(String, GValue)>.
• Implement properties_from_struct method so following code would work:

g.add_v("label")
    .properties_from_struct(PropertyStructure)
    .next()?;

Purpose

• Reduce chaining of .property() to just one step property_from_struct

[jdeepee]

@wolf4ood Please include anything you think should be changed/added.

[jdeepee]

Ill try to work on this next time I have some spare time