Add xattr-ceph-corruption-reproducer.c

Add xattr-ceph-corruption-reproducer.c

simplified xattr calls triggered by macOS client:

14315 11:09:58.120175 removexattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA") = -1 ENODATA (No data available)
14315 11:09:58.121224 setxattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA", "", 1, XATTR_CREATE) = 0
14315 11:09:58.121322 setxattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA", "AFP\0\0\0\1\0\0\0\0\0\200\0\0\0brokMACS\0\0\0\0\0\0\0", 61, 0) = 0
14315 11:10:00.102080 removexattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA") = 0
14315 11:10:00.212989 removexattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA") = -1 ENODATA (No data available)
14315 11:10:00.213699 setxattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA", "", 1, XATTR_CREATE) = 0
14315 11:10:00.213790 setxattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA", "", 1, 0) = 0
14315 11:10:00.214792 removexattr("testfolder/Folder_5/Survival-Cheat-Sheet.pdf", "user.DosStream.AFP_AfpInfo:$DATA") = 0