[Feature Request] EBCDIC support for text pane

[SaphireLattice]

It would be nice to have a support for displaying the text as it would be decoded if it was EBCDIC, rather than ASCII. I like the simplicity of this hex editor/viewer, but it becomes a bit difficult to use at all when dealing with stuff that's not encoded in ASCII...

Perhaps this could be just a general support for supplying a map of how to display a given 1 byte hex code as? Not sure what existing implementations to look at though. I definitely seen a few ways to define such a map via a file around.