[Epic] Improved TreeNode APIs

[alamb]

Is your feature request related to a problem or challenge?

This is a follow on to #8913 that tracks additional improvements to the TreeNode API

Describe the solution you'd like

• Deprecate TreeNode transform_xx_mut methods #10097

[backkem]

The ConcreteTreeNode seems like quite a nice abstraction. Maybe it's interesting to add for the LogicalPlan & Expr as well.

[alamb]

The ConcreteTreeNode seems like quite a nice abstraction. Maybe it's interesting to add for the LogicalPlan & Expr as well.

Sounds like a nice idea to me -- I suspect the best way to do so would be to find a usecase that needed / could benefit from the use of that API and refactor the existing code into the (new) API