Possibility to have intercept value as text instead of bar

[rmohan91]

In the bar visualization, compared to the other features, the unexplained contribution is very large which makes the other bars less clear. Eg: see the comparison between the feature visualizer and lime:

[rmohan91]

Update: Based on our friday meeting, it would be nice to have the option to remove the intercept from the visualization instead.

Edit: Based on our meeting thursday 21/1/21, it would still be useful to have the intercept.