Hide raw logs under --raw flag for forc-test

[kayagokalp]

After #5812 we have test log decoding alongside raw logs. @sdankel pointed out that it might be better to hide raw logs under and only show decoded logs.

That is correct, the reason i did this way is because decoding logs are very primitive without var names etc, so that is also why this is under a flag --decode as well, I am fine with removing raw logs with decoded logs too. Maybe we should have --raw, if --decode and --raw is both provided we can show the current output, with only --decode we will only see Decoded log value ... lines.

Originally posted by @kayagokalp in #5812 (comment)