Add functionality to first predict brand and then model

[rosie-coxx]

• [x] - Add table that for each brand has a 1 or 0 for whether there is brand level prediction available
• [x] - For brands where the model functionality is available run the predictions through the model level ML model
• [x] - Output predictions to a model prediction table filepath | model | Percentage
• [x] load a saved model to notebook
• [x] add file path to dimension
• [x] link dimension to both prediction tables
• [x] add upload images to github
• [x] point prediction dataset to upload images