Support Ctrl-Left/Right/Up/Down on Windows keeping compatiblity with Linux

[hymkor]

On Windows, ReadRune() could not catch Ctrl-UP/DOWN/RIGHT/LEFT, but on Linux it can.

With this patch, ReadRune() on Windows can catch them as below.

• Ctrl-UP : ^[[1;5A
• Ctrl-DOWN: ^[[1;5B
• Ctrl-LEFT: ^[[1;5D
• Ctrl-RIGHT: ^[[1;5C

Would you merge my patch if there is no problem ?

(I fixed _example/simple.go because under cooked-mode, Ctrl-DOWN and Ctrl-UP work to scroll the console-window )

[mattn]

Thank you. I'll look in later.

[hymkor]

Thank you! I appended these 5 keys.

• Ctrl-Home ^[[1;5H
• Ctrl-End ^[[1;5F
• Ctrl-PgUp ^[[5;5~
• Ctrl-PgDown ^[[6;5~
• Ctrl-Delete ^[[3;5~

[mattn]

LGTM, Thank you