Write test for the similarity calculation.

[KeitaW]

• Create a branch for this issue.
• Copy https://github.com/KeitaW/Chaldea/blob/master/chaldea/edit_sim.jl to this repo.
• Write tests based on edt_sim.jl.
• Write a draft function using numpy
• Write a faster-version using Cython

[tuanpham96]

Hi, this is an interesting method. I am trying it on a set of data and I was wondering if you have plans to include detection/extraction of sequences; or do you have any suggestion of the approach?

I have plotting out the windows which belong to the same cluster, along with the spikes of those windows but they do not seem to match well with each other, nor with the cluster profiles in es.profiles. Do you have any suggestion?