private File doCreateExternalExtensionInFolder(File externalFolder, String extensionName,
			String version) throws Exception {
		return doCreateExternalExtensionInFolder(externalFolder, extensionName, extensionName,
			version);
	}
Tests for the {@link ExtensionInstaller} class.
Ghidra/Framework/Project/src/test/java/ghidra/framework/project/extensions/ExtensionInstallerTest.java