Change fee calc

[Maltmark]

This PR adds logic to fee updates to collect fees for more cases than the current state (only on swap ends between position):

• When the swap start in a higher tick of the upper position and ends in a lower tick than the lower position (or the opposite - start at lower and finish in higher)

• When swap starts between the position and ends outside the position

• Fix broken tests

[32ethers]

Thanks for your pull request, I'm reviewing and will give feed back asap.

[32ethers]

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Very good idea, But I think I should look into the whole picture before I merge.