f.b.cnn.step1: Convolutional Neural Network - Step 1
In Vitlik/DA2-17: Image Recognition

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1	f.b.cnn.step1(CNN_model, train_array, train_y, rounds, lr, batch)

`CNN_model`	The initial model that gets trained in this function
`train_array`	An data array with features to train on, rows being objects and columns being features
`train_y`	A vector containing all classifications for the given objects
`rounds`	A numeric value that is the amount of rounds the model is trained
`lr`	The learning rate
`batch`	The amount of objects which the model is trained on every round