feat: add ReserveIds ScaleDownStrategyType #52
Merged
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BackGround
Sometimes, we need to scale down the game servers and no longer create those automatically until those game servers are manually specified to be recreated.
Solution
The ScaleDownStrategyType field is added to the scale strategy. When the ScaleDownStrategyType is ReserveIds, the ID of the scaled down game server will be backfilled in the reserveGameServerIds field. When the user wants to recreate it, remove the ID from the reserveGameServerIds field and increase the replicas, which can meet the above requirements.