Show expected result, not only centi-pawns in analysis

As the meaning of centi-pawns depends on the position, as explained on this lichess article [ lichess.org/page/accuracy ] and is not easily interpretable for humans, it would be cool to have the win percentages/expected score instead or alongside the centipawn eval in lichess' game analysis.

What are these supposed to be in the first place?

@Cedur216 said in #2:
> What are these supposed to be in the first place?

The evaluation of the position. Centipawns are not intuitive to humans, expected score is.

Describe what expected score is and how it should be calculated.

@Deadban: When the accuracy of a move is calculated, this formula is used for calculating win probability (see lichess.org/page/accuracy):
Win% = 50 + 50 * (2 / (1 + exp(-0.00368208 * centipawns)) - 1)

Showing that number might indeed be an interesting feature in the game analysis.