[host] added option parsing to application

vendor/getopt/getopt.h

@@ -0,0 +1,20 @@
+#ifndef GETOPT_H
+#define GETOPT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+  extern int   opterr;    /* if error message should be printed */
+  extern int   optind;    /* index into parent argv vector */
+  extern int   optopt;    /* character checked for validity */
+  extern int   optreset;  /* reset getopt  */
+  extern char *optarg;    /* argument associated with option */
+
+  int getopt(int nargc, char * const nargv[], const char *ostr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif