fix(Sankey): insufficient pass-in parameters for the callback function of edgeStyle

[csjkevin]

PR includes

• fix the bug that the the callback function edgeStyle has no sufficient parameters

Before:

Only the parameters of name, x and y are passed into the callback function edgeStyle. The value of name is the name of the source node. Users cannot get the name of the target node while using edgeStyle. The rawFields does not affect.

After:

The parameters of source and target are passed into the callback function edgeStyle. Users can get the name of the target node from target. The rawFields takes effect.