[wpiunit] Add hypot method for calculating the hypotenuse between two distances (second trial)

[SuleymanSade]

Adds a simple .hplot() method with tests that gets the hypothenuse between two distances. Contains both static and instance versions. Fixes #7666

[auscompgeek]

I'm confused as to why this PR was recreated, when it looks like it's the same commits.

[SuleymanSade]

It is not the same. The previous implementation of hypot() was using Measure with some other things, which was wrong. Like the implementation itself was wrong, I think. And I added some more detail to the comments. I think it should work now, and yet it still didn't pass the tests.

Here is a more clear comparison of the static hypot():
current:
static Distance hypot(Distance a, Distance b) {
return a.unit().ofBaseUnits(
Math.hypot(a.in(a.unit().getBaseUnit()), b.in(b.unit().getBaseUnit()))
);
}

old version:
static Distance hypot(Measure<? extends DistanceUnit> a, Measure<? extends DistanceUnit> b) {
return (Distance) a.unit().ofBaseUnits(Math.hypot(a.baseUnitMagnitude(), b.baseUnitMagnitude()));
}

I might be wrong.

[auscompgeek]

From what I can see, both #8495 and this PR have e5eb237 as the latest commit.

[SuleymanSade]

Now I see the problem. I pushed my new commit on the same repo, so the PR #8495 was also updated with the new commit. I thought I had to create a new PR with the new commit. Because when I did the PR #8495 I originally only had the commit a2dcf09. So you are right, this was an unnecessary extra PR that I hadn't realized. Sorry about that, I didn't know PRs worked this way.

[zachwaffle4]

Should it not use the same unit for both values?

[SuleymanSade]

What do you mean? I am confused. It uses Distance for both of the parameters and the return value.