Allow input to be Array(Array)

[bararchy]

Lets say my input data looks like this

Text Data	Expected Output
bla bla bla bla	0.8

Now, I'll use BagOfWords or word2vec to encode the "bla bla bla bla" string which will give me an Array(Float64).
So my training data now looks like that

Text Data	Expected Output
[0.8, 0.1, etc..]	0.8

So I want grey_matter to allow my to pass in data as an Array(Array(Float64 | Int32)) so that I can use multiple values as one input neuron