Please consider adding Virtual keyboard support to java.awt.event KeyEvent.java
class as follows:

1. Two seperate VK codes for Right and Left Shift
2. Two seperate VK codes for Right and Left Control
3. Add support for additional VK codes for F13 - F24.
4. Add support for additional VK codes for other keys on the IBM 122 keyboard
   standard. This standard is used by keyboard manufs for 3278 terminal kbds.