* GetPetAchievementsByUserID and enum for PointTypes
* add RankService
* use AchievementPointTypes for PointTypeID
... insted of int in schema
* support for player XP, fix dragon XP
- database table
- return correct value in API call
- save XP from mission
* rename RankService to AchievementService
* use addAchievementPoints for all non item reward
this could be a good place for wallet servicing too ... so currency reward too
* return const XP value for farming and fishing
we don't have gathering method for those XPs yet
* fix avatar schema, fix coding style
