* create basic strtok

* add test and expected output

tests/string/strtok.c

@@ -0,0 +1,15 @@
+#include <string.h>
+#include <stdio.h>
+
+int main(int argc, char* argv[]) {
+    char source[] = "I'd just like to interject for a moment.  What you're referring to as Linux, "
+                    "is in fact, GNU/Linux, or as I've recently taken to calling it, GNU plus Linux.\n";
+
+    char* token = strtok(source, " ");
+    while (token) {
+        printf("%s_", token);
+        token = strtok(NULL, " ");
+    }
+
+    return 0;
+}