feat(Viz): viz provider and line chart added

[MEsteves22]

• HvVizProvider created for visualisations themes.
• HvLineChart created: line, stacked, area, range slider, and multiple series.

At the moment the data can either be columns, rows, or an arquero table. In the future, we can add new data formats such as CSV, JSON, Apache Arrow, and so on.

This is a first iteration for charts. We will most likely need to refactor the code along the way if other charts need to share the same API. For now I decided to keep the code as it is since I believe this is something that will make more sense in the future when working on the other charts.

[MEsteves22]

I just noticed that when I started using setOptions the tooltip styling is no longer updating when the color mode is changed 😅 I will look into this.

[MEsteves22]

The tooltip problem was fixed in my last commit. I had to stop updating the tooltip options with setOptions since it was not working this way. However, I need to update the remaining options with setOptions to use replaceMerge and avoid the range slider to constantly reset its values when using dynamic data.

[zettca]

Awesome work 👍

Some minor notes (that can be handled later)