Fix point calculation for twoWayOffset due to wrong angle direction

[OdNairy]

This PR address incorrect calculation for a twoWayOffset function. Expected behaviour (I guess) was to have two touches with 180° with configurable angle to the horizont.

After PR

let angle = -35 * (Double.pi / 180.0)
try eventGenerator.fingerPinch(fromDistance: 20, toDistance: 200, angle: angle, duration: 3)

fix.angle.mov

Before

Here is how it looks like for angle = 0:

horizontal.mov

And this is what we have for a 35 degrees angle:

angle.mov

[OdNairy]

@keith @gabriellanata Added GitHub Actions fixes

[gabriellanata]

I think i'm a little confused on what this fixes. Seems like its working correctly right now: See the HandTests.testViewRotationGesture() test. The view rotates as expected. Are you specifying degrees or radians when trying to use this function?

[OdNairy]

@gabriellanata It is the fix for fingerPinch. I did expect that the angle would describe the angle between the horizontal line and the line connecting two touch locations. Was my assumption wrong?

let angle = -35 * (Double.pi / 180.0)
try eventGenerator.fingerPinch(fromDistance: 20, toDistance: 200, angle: angle, duration: 3)

[OdNairy]

@gabriellanata are you still confident that it's not an issue?