IsEncrypted flag set for UTOC container for not reason

[Kein]

The resulting UTOC and UCAS arent encrypted but the tool set isEncrypted flag regardless in UTOC header:

[GhostyPool]

The tool tries to encrypt the UCAS with the original AES key here: https://github.com/rm-NoobInCoding/UnrealReZen/blob/f6d65786084cf0b1b94860ac6abe7af23f837566/UnrealReZen/Core/FIoPack.cs#L46-L51

And sets the flag inside the UTOC, but does not encrypt the UTOC directory index.

Imo, I don't really see the use for encrypting the resulting files. Maybe having it as an argument would be nice.