JBTIS-95: Closing and opening project is an incompatible solution

* NewModelProjectWizard
 * The overlay icons do display so it is unnecessary to close/open the
   project during the project's creation. More importantly, it is
   incompatible with the Savara project, which is installed as part of
   JBDS.

* ModelWorkspaceManager
 * Errors concerning folders being processed under the project is being
   created start to be logged. Readjusts the logic to address and remove
   there errors.
TEIIDDES-1565 Remove extraneous files from teiid 8.4 plugin

* Lots of stuff retained from the original teiid 8.4 clone is removed.
Views trying to find undo action

* Views extending ModelerView, still try to load the Undo and Redo actions
  which have been removed. These views are all read-only and informational
  hence have no requirement for these actions.

* Loading of these actions is simply removed.