refactor: rename opencv module to master_machine, remove old master_process

- Delete modules/master_machine/ (old seasky protocol vision module)
- Rename modules/opencv/ → modules/master_machine/
- Rename opencv.h/c → master_machine.h/c
- Remove master_process.h include from robot_def.h and ins_task.c
- Remove VisionSetAltitude() call from ins_task.c (send not needed)
- Update all #include paths and CMakeLists.txt

application/cmd/robot_cmd.c

@@ -8,7 +8,7 @@
 #include "message_center.h"
 #include "general_def.h"
 #include "kalman_filter.h"
-#include "opencv.h"
+#include "master_machine.h"
 /* bsp */
 #include "bsp_dwt.h"
 #include "bsp_log.h"