Call VL53L0X.open() after GPIO goes HIGH

[w4-jonghoon]

There was an issue to execute VL53L0X_multi_example.py.

pi@raspberrypi:~/jseo/VL53L0X_rasp_python/python $ python VL53L0X_multi_example.py
VL53L0X Start Ranging Address 0x2B

Setting I2C Address to 0x2B
Call of VL53L0X_SetAddress
API Status: -20 : Control Interface Error
VL53L0X Start Ranging Address 0x2D

Setting I2C Address to 0x2D
Call of VL53L0X_SetAddress
API Status: -20 : Control Interface Error
VL53L0X_BETTER_ACCURACY_MODE
API Status: 0 : No Error
VL53L0X_BETTER_ACCURACY_MODE
Set Accuracy
API Status: -20 : Control Interface Error
Timing 20 ms

I figured out that is because calling VL53L0X.open() before GPIO goes High (GPIO.output(sensor[12]_shutdown, GPIO.HIGH).
The problem - Control Interface Error was occurred while writing to i2c bus in VL53L0X_SetDeviceAddress() in vl53l0x_api.c.
I'm not sure it is safe to make GPIO high before the calling the function(VL53L0X.open()), but it is working.
Please review change and pull the patch.