Initial data commit

Task/Extreme-floating-point-values/Wren/extreme-floating-point-values.wren

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+// using pre-defined constants
+var inf = Num.infinity
+var negInf = -inf
+var nan = Num.nan
+var negZero = -0
+System.print([inf, negInf, nan, negZero])
+System.print([inf + inf, negInf + inf, nan * nan, negZero == 0])
+System.print([inf/inf, negInf/2, nan + inf, negZero/0])
+System.print()
+
+// using values computed from other 'normal' values
+var inf2 = 1 / 0
+var negInf2 = -1 / 0
+var nan2 = 0 / 0
+
+// using built-in comparison operators
+System.print(inf2 == inf)
+System.print(negInf == negInf2)
+System.print(nan == nan2)
+System.print(nan == nan)
+System.print()
+
+// using object equality
+System.print(Object.same(nan, nan))
+System.print(Object.same(nan, nan2))