public ProjectFileValue defineProjectFile(String name, String startingPath) {
		checkDup(name);
		ProjectFileValue value = new ProjectFileValue(name, startingPath);
		valuesMap.put(name, value);
		return value;
	}
Defines a value of type DomainFile (files in a Ghidra project).
@param name the name for this value
@param startingPath the initial folder path for the chooser widget
@return the new ProjectFileValue that was defined
Ghidra/Features/Base/src/main/java/ghidra/features/base/values/GhidraValuesMap.java