Add cell for consuming parameter dict from old pytti colab

[dmarx]

something like this:

# duct tape to permit posting raw JSON into the cell and interpreting it as python
false=False
true=True
null=None

colab_dict = {}

# User populates this value
MY_SETTINGS ={}

colab_dict.update(MY_SETTINGS)
cfg = OmegaConf.create(colab_dict)