Adds JSON and ERB files to the WAR file built by the create_war.sh script

These files are necessary to support dynamic tagging (without them the
dynamic tags added to nodes by Hanlon are not added) and dynamic construction
of iPXE scripts by Hanlon based on the current state of a node (without these
ERB templates, Hanlon cannot successfully boot a node once that node has
been bound to a model by a policy).