Added unsupervised learning class, interactive platform, and 1D CNN Transformer

[tma66]

Changes

• New class UnsupervisedML containing methods for clustering and dimensionality reduction along with plotting methods
• Streamlit app code to interact with TelescopeML dataset via unsupervised learning
• Expanded DeepTrainer into new class, CNNTransformerTrainer, to include additional Transformer layer
• Train_CNN_Transformer_Model notebook to run CNN transformer model and compare against baseline