LPS-34461 - Preserve selected items in tags administration

Hey @Robert-Frampton,

Attached is an update for http://issues.liferay.com/browse/LPS-34461.

Can we make some updates to this issue?

We actually already have a component that handles the token portion that's being generated. Can you look into using Liferay.TokenList? It's a really simple component, but it saves us from having multiple UI's for the same thing. 

Also, you may need to update the icons for the close icon in the token list (and possibly some other styles). Lastly, apply all the changes and squash the commits which we have made.

Please let me know if you have any questions.  Thanks!