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:

[Ghostyface1337]

The tool tries to encrypt the UCAS with the original AES key here:

UnrealReZen/UnrealReZen/Core/FIoPack.cs

Lines 46 to 51 in f6d6578

	if (aes.KeyString != Constants.DefaultAES)
	{
	var b = File.ReadAllBytes(Path.ChangeExtension(outFilename, ".ucas"));
	var encrypted = CryptographyHelpers.EncryptAES(b, aes.Key);
	File.WriteAllBytes(Path.ChangeExtension(outFilename, ".ucas"), encrypted);
	}

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.

[rm-NoobInCoding]

Fixed in #73 — --aes-key no longer implies output encryption. Encrypting the output is now opt-in via --encrypt-output, so the EncryptedContainerFlag isn't set on the UTOC unless you actually ask for it.