Default argument after previous specification in header

https://github.com/sparkfun/SparkFun_VL53L1X_Arduino_Library/blob/1773c55cb9fe2427d5f6ceef2aaf080b380fc88f/src/SparkFun_VL53L1X.cpp#L6

The first argument should not have a default value (that has been already declared in header file).
Fix:
```c
SFEVL53L1X::SFEVL53L1X(TwoWire &i2cPort, int shutdownPin, int interruptPin)
```