[train_task_classifyapp] doesn't have an opportunity to use pre-trained model weights

[natalymr]

I've noticed that there was missing a method in NCC_classifyapp class:

def load_weights(self, file_with_weights):
        self.model.load_weights(file_with_weights)

So, with the aim to just load weights and test the model in evaluate method you can do smth like this:

model.load_weights('published_results/classifyapp/CLASSIFYAPP-94.83.h5')

# Test model
print('\n--- Testing model...')
p = model.predict_gen(generator=gen_test)[0]

[tbennun]

Sounds great. Could you upload a pull request and I'll merge?