Add optional argument `uint8_t hw_timer`.

This selects which of the four ESP32 hardware timers to use.

Add a start marker to the log files.

Update library.properties

Version to 1.0.1.

1.0.0

Bump version.

Hopefully the last RC.

Merge pull request #2 from CelliesProjects/choose_num_of_sensors

Choose number of sensors.

Pre-release.

FFatSensor is now called with the desired number of sensors:

FFatSensor logger;

void setup() {
  logger.startSensors( num, pin );
}

First public release.

Merge pull request #1

Split Task from FFatSensor. (Split Task from FFatSensor)