passing props to the treeNodeRenderer

# Requesting a Feature `generateTreeNodeProps`

* What's your use case?
I set `isVirtualized` to `false` and use dynamic rowHeights.
I removed all `lineHalfHorizontalRight` except for the last children element. For the last elements without further children i need to remove all lines. See picture below.
I want to know if `node` is one of the last nodes without children and hide the lines. Therefore i need more info about the tree in the `treeNodeRenderer`.

* What interface do you have in mind?
I think it would be helpful to be able to pass props to the `treeNodeRenderer` similar to `nodeContentRenderer` with `generateNodeProps`.

If you any other solution, i would be glad to hear :)
I removed the horizontal lines, because i made the children expandable and was not able to place the horizontal lines on the icon-boxes as they are part of a bigger container.
If i would be able to either remove the line or place correctly i would be happy :)

Sincerely
Faruk