First commit of partial RosettaCode contents.

Pushing this for testing purposes. Lots of work still needed.

Task/Infinity/C/infinity-2.c

@@ -0,0 +1,9 @@
+#define _ISOC99_SOURCE
+
+#include <math.h>
+#include <stdio.h>
+
+int main() {
+  printf("%g\n", INFINITY);
+  return 0;
+}