Creates an AcceleratorTable object. %ACCELERATORS is an
associative array of key combinations and accelerator names, in pair:
Example:
    $A = new Win32::GUI::AcceleratorTable(
        "Ctrl-X"       => "Close",
        "Shift-N"      => "New",
        "Ctrl-Alt-Del" => "Reboot",
    );
The AcceleratorTable object can be associated to a window with the -accel option; then, when an accelerator is used, a corresponding <name>_Click event is fired. Keyboard combinations currently support the following modifier :
    Shift
    Ctrl  (or Control)
    Alt
and the following keys:
    A..Z, 0..9
    Left, Right, Up, Down
    Home, End, PageUp, PageDown (or PgUp/PgDn)
    Space, Ins, Del, Esc, Backspace, Tab, Return
    F1..F12
Sent when the users triggers an Accelerator object.