[TD] Fix loading of zounds.mix.

[OmniBlade]

Loading was previously gated behind a check for Special.IsJuvenile which isn't set until later in the init process.

[giulianobelinassi]

But in this case the Juvenile flag isn't check for loading ZOUNDS.MIX. Is that intended?

[Nyerguds]

I agree with @giulianobelinassi; the fix should just be to move the load to a point after the conquer.ini settings reading.

[OmniBlade]

The files in zounds.mix have a different extension and wouldn't have been used unless IsJuvenile was set, but I've refactored it to check and load after conquer.ini has been loaded so the check is correct now rather than removing it.