Avoid Deref polymorphism

[lo48576]

std::ops::Deref should be only used for smart pointer types, and it is considered as an anti pattern to use it to "derive" parent type.

• Deref Polymorphism - Rust Design Patterns
• std::ops::Deref - Rust

Deref should only be implemented for smart pointers to avoid confusion.

--- https://doc.rust-lang.org/stable/std/ops/trait.Deref.html

Currently, some object types abuse Deref trait, and this use of Deref should be removed in future.

• v7400::object::**::*Handle (including ObjectHandle)
  • So many types!
• v7400::data::mesh::layer::*Handle (including tree::v7400::NodeHandle)

[Kleptine]

Not the biggest fan of macros, but delegate! might be useful. https://crates.io/crates/delegate