The display of `epoch_loss`

[YuxinZhaozyx]

The epoch_loss initialized to 0 and never updated after then, the output of the program is always as follow. The loss is always 0.

Epoch 0 completed out of 10 loss: 0
Epoch 1 completed out of 10 loss: 0
Epoch 2 completed out of 10 loss: 0
Epoch 3 completed out of 10 loss: 0
Epoch 4 completed out of 10 loss: 0
Epoch 5 completed out of 10 loss: 0
Epoch 6 completed out of 10 loss: 0
Epoch 7 completed out of 10 loss: 0
Epoch 8 completed out of 10 loss: 0
Epoch 9 completed out of 10 loss: 0

https://github.com/abhay97ps/Anomaly-Detection-in-Surveillance-Videos/blob/4be07aba4a8dda7cea882f33782595622d248d3e/Anomaly_NN.py#L58-L79