Byte array Extras do not work

[cyberMilosz]

Byte array Intent Extras are currently non-functional.

Ideally we should:

• be able to call it programmatically from modules, e.g. intent.extras.append(("bytearray","CERT",cert)) in the kernelerror.tools.misc.installcert module
• call it from the console for a byte array that's easily representable as a string
• when it cannot be represented as a string, we might want to be able to ingest a base64'd input from the console