Updated depreciated np.int too np.int_

[sw241395]

Still new to contributing to open source, if you want me to make any edits to this PR then feel free to let me know.

[sw241395]

I was planning on implementing the ability to have more than 26 number of cuts for SAX but am limited as the output of the method is string and it may get confusing between a SAX representation of ['a', 'a', 'b', 'a'] and ['a', 'ab', 'a']. You could change it so that you return a list of strings rather than a single string, therefore you are not limited too 26 cuts.

[m0odero]

Is it possible to accelerate the merging of this change so we can effectively use it? It's currently throwing errors and it's impossible to move on without this. I would also suggest that we use int64/int32 instead of int_

[sw241395]

Have updated int_ too int64, is this ok?

[m0odero]

Have updated int_ too int64, is this ok?

This is okay. I'll test and revert.