public static void main(String[] args) throws IOException {
		new GhidraJarBuilder().launch(new GhidraApplicationLayout(), args);
	}
Puts a directory in the jar for Ghidra Extensions. This may be empty (if
no extensions are installed) but should exist nonetheless.

@throws IOException if there's an error writing to the jar
Ghidra/Features/Base/src/main/java/ghidra/util/GhidraJarBuilder.java