public static Set<ExtensionDetails> getInstalledExtensions() {
		return getAllInstalledExtensions().get();
	}
Returns all installed extensions. These are all the extensions found in
{@link ApplicationLayout#getExtensionInstallationDirs}.

@return set of installed extensions
Ghidra/Framework/Generic/src/main/java/ghidra/util/extensions/ExtensionUtils.java