Add a "summon_in_water" option for behavior.summon_entity

The "minecraft:behavior.summon_entity" component is a really useful component for add-on development in Minecraft Bedrock Edtion. It allows entities to summon mobs either on their target or around it with many other useful features included. However, one limitation that holds it back is that it can't function on/underwater. I feel this has to do with the entity's placement when summoned and wouldn't make sense to spawn on top of the water block. I present a simple solution to this: ignore the water block. The summoned mob would spawn normally in or underwater above a block that is close to the entity summoning. This feature could be toggled on or off, for example, "summon_in_water:true". I really ask that you guys consider this since the summon_entity component is really unique and can"t be recreated in any other way without modding the game.