AtlasML: Add initial embedding model

[ardakaraman0]

What?

Closes #22
This PR creates the two initial embedding models that we will be using.
Tries out OpenAI embeddings model.
Tries out Sentence BERT as a fallback model.

Why?

These models are the starting point of the context extraction that we will be using for the similarity measures and clustering methods.

How?

Affected Issues & Feature Proposal

Closes #22

Checklist

General

• I chose a title conforming to the naming conventions for pull requests.

AtlasML - Machine Learning

• I updated the machine learning documentation.

Testing

Testing Instructions

Requirements:

• OpenAI key

Steps:

1. Run AtlasML/atlasml/ml/VectorEmbeddings/FallbackModel.py
2. Put in your OpenAI key in MainEmbeddingModel.py:4 where it indicates.
3. Run AtlasML/atlasml/ml/VectorEmbeddings/MainEmbeddingModel.py

Review Progress

Code Review

• Code Review 1
• Code Review 2

Manuel Test

• Test 1
• Test 2