Distance, time of flight sensor vl53l0x very unstable and crashes with other devices or if not connected

[ulno]

The initial vl53l0x implementation uses still a lot of busy waiting due to the imported library. This needs to be fixed and turned into some polling mechanism in measure.

Until then using vl53l0x will only work alone (and needs to be connected correctly). Simple input and outputs might work in addition but i2c devices or the ultrasonic distance sensor will definitely not work in parallel and cause constant crashes making OTA flashing (deploy) impossible -> though adoption should still work.

[ulno]

I did some updates to the I2C library, and I think it's a little less prone to crashing (even if still delays other processes) - anybody can confirm that it is working better for them now?