Changed directory structure and renamed applications

- autopilot -> drone_controller
- rtsp_ai_player -> ai_controller
- added top level qmake project file
- updated documentation
- moved small demo applications from tmp/ to misc/

ai_controller/src-opi5/aiengineinferenceopi5.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <QObject>
+#include "aiengineinference.h"
+#include "yolov8.h"
+#include "image_utils.h"
+
+class AiEngineInferenceOpi5 : public AiEngineInference
+{
+    Q_OBJECT
+public:
+    explicit AiEngineInferenceOpi5(QString modelPath, QObject *parent = nullptr);
+    ~AiEngineInferenceOpi5();
+    void initialize(int number) override;
+
+public slots:
+    void performInferenceSlot(cv::Mat frame) override;
+
+private:
+    image_buffer_t convertCV2FrameToImageBuffer(const cv::Mat& bgrFrame);
+    void freeImageBuffer(image_buffer_t& imgBuffer);
+    cv::Mat resizeToHalfAndAssigntoTopLeft640x640(const cv::Mat& inputFrame);
+    void drawObjects(cv::Mat& image, const object_detect_result_list& result_list);
+
+    rknn_app_context_t mRrknnAppCtx0;
+};