using only px4_getopt() and never the unsafe getopt()

using only <px4_getopt.h> as include, cleanup related includes
added check that all the option are valid (myoptind >= argc). if there are invalid options on some script that might now lead not to run commands

src/drivers/imu/bmi055/bmi055_main.cpp

@@ -35,7 +35,7 @@
 #include "BMI055_gyro.hpp"
 
 #include <px4_config.h>
-#include <platforms/px4_getopt.h>
+#include <px4_getopt.h>
 
 /** driver 'main' command */
 extern "C" { __EXPORT int bmi055_main(int argc, char *argv[]); }