Add visualizations for risk report

[invisibleroads]

• Review metrics
• Add summary visualizations to RisksCard
• Add summary visualizations to RisksWindow

[poguez]

Risks card

Risks window

[mayrars]

@invisibleroads @poguez for the view of the risk card, which data is more outstanding to place on the graph, because placing all the graphs is too much. Please tell me what are the most important data.