Add no data + help modes to graph elements

[morsh]

@deadlyfingers - Please review this ask, or think about an alternative, not sure if this would be comfortable to define.

When no data is present enable elements like PieData, Timeline, etc... should present a "No Data" message and a link or InfoDrawer to show more data (like where that data should come from).

For example - Sentiment analysis - when no data is present, explain how when where this data can be added.

[DK308]

Hello is this issue still available?

[morsh]

Hi @DK308 - yes it is

[asantiagot]

Hi, is this still available?

[morsh]

@asantiagot most probably...