message: Rename compile time data to ProductionCostTable
diff: * produce. It is up to the individual factory to determine what they are
  * allowed to build.
  */
  -const std::map<ProductType, ProductionCost> PRODUCTION_TYPE_TABLE =
  +const std::map<ProductType, ProductionCost> ProductionCostTable =
  {
  {ProductType::PRODUCT_NONE, ProductionCost{}},
  @@ -32,7 +32,7 @@ const std::map<ProductType, ProductionCost> PRODUCTION_TYPE_TABLE =
  const ProductionCost& productCost(ProductType productType)
  {
  - return PRODUCTION_TYPE_TABLE.at(productType);
  + return ProductionCostTable.at(productType);
  }
  