MotorHat/Pca9685 is throwing an exception when initial value from PCM registers are out of range

**Describe the bug**

See the report here: https://stackoverflow.com/questions/72848224/iot-device-motorhat-and-raspterry-pi4

When the initial values for the duty cycle present in the Registers are outside the range the library would set them itself, an `InvalidOperationException` is thrown in `GetDutyCycle`. Since by default, the PCA9685 constructor does not set initial values (leaving them at what they were), this is a problem. The MotorHat constructor, which internally creates a PCA9685, does not have a way to use the pca ctor overload that takes additional arguments.

**Steps to reproduce**

```csharp
public class DCMotorController : BaseClass
{
public void StartMotor()
{
using (var motorHat = new MotorHat(1000d, 0x40))
{
var dcMotorOne = motorHat.CreateDCMotor(1); // The error is thrown here
dcMotorOne.Speed = 1;
Wait(1500);
dcMotorOne.Speed = 0;
}
}
}
```

**Expected behavior**

The motor should run, no exception thrown.

**Actual behavior**

Depending on the state of the PCA9685, an exception is thrown.

**Workaround**

Initializing the PCA9685 with forced default values before initializing the MotorHat binding seems to solve the issue.

**Suggested fix**

In the MotorHat ctor, use the PCA9685 ctor that uses all arguments to make sure it is initialized correctly. Or add another ctor there.