Fix to handle c3 bug where bar chart tool was not padded correctly when a tool legend was present, causing the legend to render over the tool.
Fix to handle c3 bug where bar chart tool was not padded correctly when a tool legend was present, causing the legend to render over the tool.

WeaveTeam/WeaveJS,WeaveTeam/WeaveJS,WeaveTeam/WeaveJS,WeaveTeam/WeaveJS