rotate function
Rotate rotates a 2D array in multiples of 90 degrees
For further details, please see: https://docs.opencv.org/master/d2/de8/group__core__array.html#ga4ad01c0978b0ce64baa246811deeac24
Implementation
Mat rotate(InputArray src, int rotateCode, {OutputArray? dst}) {
dst ??= Mat.empty();
cvRun(() => ccore.cv_rotate(src.ref, dst!.ref, rotateCode, ffi.nullptr));
return dst;
}