Compare results across all decompositions

[coatless]

Issue:

Right now, we only have comparison tools to highlight the difference of the wavelet variances. Given that we are adding more robust functions (avar, hadamard, and so on), it is problematic that a comparison between these values is not possible.

Solution

Two parts:

1. Write the necessary code to calculate the additional variances.
2. Create a graph that is able to display all of the different signals.