Initial data commit

Task/Loops-Nested/Chapel/loops-nested.chapel

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+use Random;
+
+var nums:[1..10, 1..10] int;
+var rnd = new RandomStream();
+
+[ n in nums ] n = floor(rnd.getNext() * 21):int;
+delete rnd;
+
+// this shows a clumsy explicit way of iterating, to actually create nested loops:
+label outer for i in nums.domain.dim(1) {
+        for j in nums.domain.dim(2) {
+                write(" ", nums(i,j));
+                if nums(i,j) == 20 then break outer;
+        }
+        writeln();
+}