Sentiment Classification using ELMo Embeddings

Followed a blog to create bi-LSTM model that that takes ELMo embeddings as inputs.

• Trained it on GPU.
• Used Cached tools to fasten the process of getting embeddings.
• Saved_model format does not work with tf hub models using Lambda layer. (Have to check further)
• note-to-self: when using TF hub models, have to disable eager execution and default behavior