[ET Trac] [Einstein Toolkit] #1358: import CoreCollapseControl into ET

#1358: import CoreCollapseControl into ET -------------------------+-------------------------------------------------- Reporter: rhaas | Owner: Type: enhancement | Status: new Priority: optional | Milestone: Component: Other | Version: Keywords: | -------------------------+-------------------------------------------------- This thorn controls output frequency and grid structure based on the different stages of a core collaspe simulations.

Currently in incoming.