Field widget for taxonomy term selection

[serundeputy]

@quicksketch
Can you put that outline here that you discussed in the weekly meeting 28 July 2016.

[mikemccaffrey]

I'm thinking that we are not going to want to switch taxonomy to using this reference implementation. The requirements and expectations around taxonomy terms are slightly different than with other entities. The current taxonomy reference field is not using an id to identify terms, but instead is looking up terms on save by name. And the widget allows for multiple items to be entered into the same text field.

[mikemccaffrey]

We are not going to replace the core taxonomy fields as part of the initial contrib phase of this project. However, we can start working on a from widget that will provide all of the same functionality as the term reference fields.

I just created issue #30 for the free-tagging creation of new entities. What other features does the term reference field currently provide that is not in reference?