Bug 294790 [KeyBindings] LegacyActionTools should support SWT.F13 - F20
bundles/org.eclipse.jface/src/org/eclipse/jface/action/LegacyActionTools.java
/**
	 * Table of string representations of keys (key type: <code>Integer</code>,
	 * value type: <code>String</code>); <code>null</code>> if not yet
	 * initialized.
	 * 
	 * @see #findKeyString
	 */
	private static Map keyStrings = null;
	/**
	 * The localized uppercase version of ALT
	 */
	private static String localizedAlt;
	/**
	 * The localized uppercase version of COMMAND
	 */
	private static String localizedCommand;
	/**
	 * The localized uppercase version of CTRL
	 */
	private static String localizedCtrl;
	/**
	 * Table of key codes (key type: <code>String</code>, value type:
	 * <code>Integer</code>); <code>null</code> if not yet initialized. The
	 * key is the localalized name of the key as it appears in menus.
	 * 
	 * @see #findLocalizedKeyCode
	 */
	private static Map localizedKeyCodes = null;
	/**
	 * The localized uppercase version of SHIFT