VTextField slot for input

[joel-wenzel]

Is there any reason Vuetify shouldn't support a custom input inside a text field. I.e. wrapping the native input in a control slot or something like that similar to quasar's control slot on q-field: https://quasar.dev/vue-components/field#qfield-api

My specific use case is wanting to put a monaco-editor instance inside the v-text-field instead of the default input element.

I can work on this PR for vuetify 3 if the core team agrees