PD Prefab v3

The .zip now includes a separate .vmf version of 'pd_prefab_bigspawndiff.vmf'. This version has entities to support a dynamic respawn time change difference, which was pushed in today's (Smissmas) WG update of:

• <50% difference in scores: 8s for leading team, 4s for trailing
• >50% difference in scores: 12s for leading team, 0s for trailing
• Equal scores: 6s for each team

I've updated the download to use a newer version of the prefab that should help with general team balancing on PD maps. It adds the 'trailing team has faster respawns' feature that pd_watergate was updated to use. I meant to add this earlier but to be honest I forgot.

@Diva Dan @Void @Mikroscopic @Anguish You guys might find this helpful for your current 72hour maps. Just see what differences there are between the logic entities and yours.