Plater-v591

@cont1nuity:

• Fixing error on health animations preview.
• Fixing mod/script error handling.
• Fixing show/remove of DBM timer icons not working properly in some conidtions.
• Adding 'Larger Nameplates' and the corresponding base nameplate scale optiosn to the advanced tab.
• Cleanup of old unused aura update code.
• Removing LibClassicDuration as it was no longer in use.
• Less frequent group unit updates for tank scanning against event spam.
• Adding additional performance units for Palace.