Use the platform independent python threading.Timer instead of the unix only timeout tool.
The timeout error are like the following things:
```
C:\Users\lygstate>timeout -version
Error: The specified timeout (/T) value is invalid. The valid range is from -1 to 99999 seconds.
C:\Users\lygstate>timeout 0 python
Error: invalid syntax. The default option does not allow more than '1' times.
Type "TIMEOUT /?" to learn how to use it.
```
JerryScript-DCO-1.0-Signed-off-by: Yonggang Luo luoyonggang@gmail.com