* Added `LootOwner` component used to indicate that an `ItemDrop` entity is owned by another entity
* A loot winner is now calculated after EXP allocation using the EXP per entity for weighted chance distribution
* Used existing Inventory Full overitem text to show "Owned by {player} for {seconds}secs" when a pickup fails due to a loot ownership check
* Updated agent code to take into account loot ownership when searching for `ItemDrop` targets to pick up
* Added `loot` ECS system to clear expired loot ownerships
Actually implement creating npc with new EntitytInfo by chaning
CreateNpc.loadout to CreateNpc.inventory and cleaning code in
NpcData::from_entity_info.
Damage from a given individual or group only counts towards a kill for 10 minutes since that individual or group's last damage to the entity - after this period their damage contribution is removed. This avoids the list of damage contributors growing excessively large for an entity that does a lot of combat but never dies.
EXP sharing within groups is unchanged - the difference is simply that the input to this calculation may be less than 100% of the base EXP reward for the kill if other individuals or groups contributed damage.
* Added widgets.rs to egui for reusable widgets
* Added filterable_list egui widget
* Reworked DebugShapeAction to be a more generic EguiAction which now allows for ChatCommands (used by admin tools) as well as DebugShape drawing requests.
* Fixed egui event handling so that typing/clicking within egui windows now correctly doesn't pass these events onto the game itself
* Removed /give_item limit for stackable items
- explanation of what pvp/pve means in /battlemode help
- check for radius from town instead of town in chunks (because it count
plant fields, which is kinda meh)
- better error displaying
- Add last_battlemode_change to Player component
- check on last_battlemode_change in handle_battlemode
- set last_battlemode_change after setting battlemode
- still are not persisted in any way
