Locale / OS dependent tests

[BlazingTwist]

Starting with Java 11, localization is behaving weirdly and causes tests to fail.
Despite mvn --version showing Default locale: en_GB, when running tests I get failures such as:

Expected: "< 0 .84147098 >"
Received: "< 0 ,84147098 >"

I can think of 2 solutions:

• remove localization of numbers (StringUtils: _df = new DecimalFormat("#", DecimalFormatSymbols.getInstance(Locale.ROOT));)
• disable localization when running tests (pass -Duser.language=en -Duser.country=US)

I'm leaning towards the first, because 1.5 P ~ should never fail with Unexpected token 1,5

---

Additionally test_list and golf_examples might fail on Windows.

aya/test/base/test_list.aya

Line 102 in 3ab481f

"""A B CCC

aya/test/golf/golf_examples.aya

Line 87 in 3ab481f

"ABCDEFGHIJKLMNOPQRSTUVWXYZ

It failed on my end, because git autocrlf was enabled and all \n were converted to \r\n
The resulting error is:

Assert Error:
  Expected: "A B  CCC
D EE F  "
  Received: "A B  CCC
D EE F  "

Strictly speaking, this is user-error, however, it seems you have also accidentally commit files with \r\n
https://github.com/aya-lang/aya/blob/3ab481f2eb3d14aac7d9a154db3c44a9bff12cf6/std/dialog.aya

So I think this should be fixed.
E.g. by using ["foo" "bar"] "\n" % for the tests.