Set<ExtensionDetails> get() {
		return extensionsByName.values()
				.stream()
				.filter(list -> !list.isEmpty())
				.map(list -> list.get(0))
				.collect(Collectors.toSet());
	}
Returns all unique extensions (no duplicates) that the application is aware of
@return the extensions
Ghidra/Framework/Generic/src/main/java/ghidra/util/extensions/Extensions.java