Lucifer-ml

- Added New Classifiers
- Stochastic Gradient Descent Classifier
- Perceptron
- Passive Aggressive Classsifier
- Ridge Classifier
- Ridge Classifier with CV
- Gradient boosting Classifier
- AdaBoost Classifier
- Extra Trees Classifier
- LightGBM Classifier
- CatBoost Classifier

- Added print statement for Categorical Variable completion

- FIxed https://github.com/d4rk-lucif3r/LuciferML/issues/9

- Added Introduction Banner in Preprocessing

FIxed typo in classification

- ANN: Added support for dropout layer
- ANN: Added optimizer param for hyperparam tuning