Move stdout specific functions into their own source file

include/stdout.h

@@ -0,0 +1,36 @@
+/**
+ * Author......: Jens Steube <jens.steube@gmail.com>
+ * License.....: MIT
+ */
+
+#ifndef _STDOUT_H
+#define _STDOUT_H
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <search.h>
+#include <getopt.h>
+#include <inttypes.h>
+#include <signal.h>
+
+#if defined (_POSIX)
+#include <pthread.h>
+#include <pwd.h>
+#endif // _POSIX
+
+#define STDOUT_FLAG 0
+
+typedef struct
+{
+  FILE *fp;
+
+  char  buf[BUFSIZ];
+  int   len;
+
+} out_t;
+
+void process_stdout (hc_device_param_t *device_param, const uint pws_cnt);
+
+#endif // _STDOUT_H