[cppyy] Set LowLevelView itemsize to sizeof(T) for fixed multidim arrays#21388

aaronj0 merged 3 commits intoroot-project:masterroot-project/root:masterfrom

aaronj0:fix-lowlevel-fixed-itemsizeaaronj0/root:fix-lowlevel-fixed-itemsizeCopy head branch name to clipboard