private ProgramFragment findFragment(ProgramModule module, String fragmentName) {
		Group[] groups = module.getChildren();
		for (Group group : groups) {
			if (group.getName().equals(fragmentName)) {
				return (ProgramFragment) group;
			}
		}
		return null;
	}
Creates a fragment with the given name (if it does not already exist) and moves the address 
range into the fragment.
<p>
Note: the end address is not inclusive!
@param program The program
@param fragmentName The fragment name
@param start The start address
@param end The end address
@return True on success; otherwise, false
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/DataDirectory.java