private void getFiles(File dir, List<String> list, String pathPrefix) {
		// do not recurse down
		for (File f : dir.listFiles()) {
			if (f.isFile() && !f.getName().startsWith(".")) {
				list.add(pathPrefix + f.getName());
			}
		}
	}
Get the loader class which should be used.  A null value should be
return to use the preferred loader.
@return loader class or null
Ghidra/Features/Base/src/main/java/ghidra/test/processors/support/ProcessorEmulatorTestAdapter.java