added package com.l2jserver.gameserver.model.actor.group
Reimplementing DEEP_BLUE coonfig drops
Reintroducing precise drop calculation
consistency for raid check
consistency for Raid rates across all drop classes
Conflicts:
	java/com/l2jserver/gameserver/model/drops/DeathDropItem.java
Raid rates also for grouped drops
precise drop calculation for groups
minor refactoring at precise drop calculation
Use herb rates for herbs
FIX PRECISE_DROP_CALCULATION in drop groups
herb rates for all the herbs!
Conflicts:
	java/com/l2jserver/gameserver/model/drops/GroupedGeneralDropItem.java
FIX for PRECISE_DROP_CALCULATION in grouped drops
FIX a recursion bug
added config vars for raids
this doesn't belong here
Refactored by jurchicks' request

rate by ID doesn't stack with standard rates anymore, it overrides standard retes instead (as it did prior this rework)

fixed few small bugs
fix chance multiplying and DEEPBLUE rules for groups
Added an ability to extract items from a drop group
added an ability to statically normalize a drop group
added a usage of static normalizing