Add Feature to Create "New Taxonomy Term" if it Doesn't Exists on 'Replace Taxonomy Term' Page

Problem/Motivation

Navigate to 'Replace Taxonomy Term' Page: /admin/cleantaxonomy/{tid}/replace
Currently, New Taxonomy Term Field Does Not Support the Creation of New Terms.

Steps to reproduce

Proposed resolution

Provide a Checkbox stating "Create New Taxonomy Term if it doesn't already exists.", and add the functionality to Create "New Taxonomy Term" if it Doesn't Exists.

Remaining tasks

User interface changes

API changes

Data model changes