Allowed multiple PBS files per data type, removed hardcoded lists of PBS files/.dat files/GameData classes that need data loading

Data/Scripts/010_Data/002_PBS data/004_Ability.rb

@@ -4,9 +4,11 @@ module GameData
     attr_reader :real_name
     attr_reader :real_description
     attr_reader :flags
+    attr_reader :pbs_file_suffix
 
     DATA = {}
     DATA_FILENAME = "abilities.dat"
+    PBS_BASE_FILENAME = "abilities"
 
     extend ClassMethodsSymbols
     include InstanceMethods
@@ -23,6 +25,7 @@ module GameData
       @real_name        = hash[:real_name]        || "Unnamed"
       @real_description = hash[:real_description] || "???"
       @flags            = hash[:flags]            || []
+      @pbs_file_suffix  = hash[:pbs_file_suffix]  || ""
     end
 
     # @return [String] the translated name of this ability