TreeSelect: add Slot for Options

[Rakasch]

Describe the feature you would like to see added

would like to have a slot for the options inside of the tree.

Is your feature request related to a problem?

I want to add custom html, like those right aligned custom icons

Describe the solution you'd like

would like to have a slot for the options inside of the tree.

Describe alternatives you have considered

allow to have html in the label

Additional context

No response