Consistent zstd, tar and mysqldump options.

Consistent zstd, tar and mysqldump options.

Drop: zstd adapt to improve rsynable output and speed consistency
Add: zstd compression level to 11
Add: zstd quiet
Add: zstd long reduce output size at expense higher memory usage
Add: mysqldump max-allowed-packet=1G to improve reliability with large datasets
Add: tar --sort=name to improve rsynable output