[Suggestion] Allow parenting model elements to other model elements

[Topodic]

Detailed description of your suggestion

The workflow present in Blockbench for having model elements with inherited transforms is very clunky. For cases where you simply want to have multiple parts acting as one, the group approach is sufficient.

However, for a chain of parts that you wish to inherit the previous cube's transforms (arms, legs, stems, antennae...), the only option is to nest groups within groups, each group only existing to hold a cube and another group, continuously for each segment in the part. This adds unnecessary clutter to the model tree, and makes these part chains more error prone to position given that groups have seperate transforms to their children, as clicking on the cube visually in the editor selects the cube, not the group whose transform I actually want to change to adjust the pose of the part.

Groups are still plenty valuable for cases with multiple model elements as children, so I don't think this would replace their use, but I feel it would be a big quality of life improvement for simpler cases to be able to parent model elements to each other as well.