Moves parsing code for rating-dependent cost to CostParser
(#323)
Renames some interfaces for consistency and fixes a broken "equals"
(#323)
Bonus Points use more complex calculation scheme
* Refactoring towards point-dependent cost
(#323)
Reduces the interface used for trait cost calculation
Further refactoring towards an intelligent cost model for Essence
(#323)
Essence BP cost are CurrentRatingCosts (#323)