Is your feature request related to a problem? Please describe.
I would like to be able to query stacked vectors with a simple call similar to Agent.GetObservations()

Describe the solution you'd like
A method called something like Agent.GetStackedObservations()

Describe alternatives you've considered
Manually storing the past N-number of observations and adding them using sensor.AddObservation() and then calling GetObservations() to get all of the observations.

Additional context
I am doing the inference outside of unity and that's why I need to get the observations so I can feed it to the model as inputs.

At the moment, I cannot find a function call where I can get stacked vectors. Therefore, I am manually adding them to the sensor observation vector and then getting all of the observations by calling GetObservations() function.