Allow for hex formatting against binary fields for dumping exports

[mcioffi]

For databases with large amounts of binary data, data integrity and interoperability is important, as some other tools or importers can struggle with special characters and encoding in raw binary.

Export tools like mydumper and mysqldump already use a --hex-blob option to store binary as hex.

https://mydumper.github.io/mydumper/docs/html/mydumper_usage.html#cmdoption-mydumper-hex-blob

https://dev.mysql.com/doc/refman/9.2/en/mysqldump.html#option_mysqldump_hex-blob

Having something similar with the native pscale database dump would ensure users are getting the same popular benefits found elsewhere.