Temporarily rename hipposys:authrole nodes to their hipposys:role value to prevent sns conflicts

This is only a temporary migration fix, to be replaced with a more final renaming of such node names in the sources.

It only handles hipposys:authrole named nodes within esv bootstrap content xml, not hippo:contentdelete or hippo:contentprop[set|add] initialize items (which we currently don't have in the product bootstrap configurations)