Fixed MinimumBoundingCircle.getMaximumDiameter() to handle case where extremalPts[2]-[0] is longest

[tink-expo]

Hello,

It seemed that MinimumBoundingCircle.getMaximumDiameter() returns farther pair only among extremalPts[0]-[1] and extremalPts[1]-[2] if extremalPts.length == 3.

I thought this can cause unexpected result when extremalPts consists of 3 points forming acute triangle, and the longest segment is extremalPts[2]-[0].
(Please take a look at the case added at MinimumBoundingCircleTest.testMinDiameterPolygon().)

So I'm suggesting a change for farthestPoints() to handle this case as well by checking all three segment length.

Maybe I have misunderstood the purpose of getMaximumDiameter(), but if I have understood the method description comments correctly, this fix could be helpful.
Thank you :)

[dr-jts]

This is great, thanks.

Would you be able to fix the test file to say maxDiameter in the method names instead of minDiameter ?

[tink-expo]

Fix applied :)

[dr-jts]

Great, thanks.