boolean canCloseDomainObject(DomainObject domainObject) {
		for (Plugin p : pluginList) {
			if (!p.canCloseDomainObject(domainObject)) {
				return false;
			}
		}
		return true;
	}
Allow plugins to cancel the closing of the domain object.
Note: This forces plugins to terminate any tasks they have running for the
indicated domain object and apply any unsaved data to the domain object. If they can't do
this or the user cancels then this returns false.
@param domainObject the domain object
@return true if all the plugins indicated the domain object can close.
Ghidra/Framework/Project/src/main/java/ghidra/framework/plugintool/PluginManager.java