Add CPU/GPU gate and support new ANSALPR using OCR

modules/ANSOCR/ANSOCRBase.h

@@ -181,7 +181,7 @@ namespace ANSCENTER {
 		};
 		[[nodiscard]] virtual bool Destroy() = 0;
 	};
-	class ANSOCRUtility
+	class ANSOCR_API ANSOCRUtility
 	{
 	public:
 		[[nodiscard]] static std::string OCRDetectionToJsonString(const std::vector<OCRObject>& dets);