Tensorboard Integration + model export location

[martinb-ai]

Description

No additional install dependancies needed.

Example:

load aapl.csv
trans aapl

Any models that use tensorboard to track gradients, now automatically saves logs for viewing. The user is then presented with instructions on how to run it and where to get files:

When running it will look like this in a new terminal:

(obb) martinbufi@Martins-MacBook % tensorboard --logdir=/Users/martinbufi/OpenBBUserData/exports/forecast_models/trans_model/logs
TensorFlow installation not found - running with reduced feature set.

NOTE: Using experimental fast data loading logic. To disable, pass
    "--load_fast=false" and report issues on GitHub. More details:
    https://github.com/tensorflow/tensorboard/issues/4784

Serving TensorBoard on localhost; to expose to the network, use a proxy or pass --bind_all
TensorBoard 2.11.0 at http://localhost:6006/ (Press CTRL+C to quit)

Lastly, all models are now saved in OpenBBUserData