Fixing slow key issues with the FACOM converter

- Required some small API changes, shouldn't affect any other Scan modules (addition of a parameter)
- Still have the latching annoyances for some of the modifiers
- Swapped Esc and Tilde for convenience
- Removed the old Esc key from the latch list (no one needs 13 latches anyways...)
- Added the control cluster mappings (Insert, Delete, Home, End, PgUp, PgDn)
- All other misc keys are currently un-assigned if a keycap legend doesn't map to anything known
  (e.g. blank keys, 000 and 00 are mapped, but your OS probably doesn't know what they mean :P)

USB/pjrc/usb_com.c

@@ -85,6 +85,6 @@ inline void usb_send(void)
 		USBKeys_Sent      = 0;
 
 		// Signal Scan Module we are finishedA
-		scan_finishedWithUSBBuffer();
+		scan_finishedWithUSBBuffer( USBKeys_Sent <= USBKeys_MaxSize ? USBKeys_Sent : USBKeys_MaxSize );
 }