1.57b

Changes

Add UIPickupItemList and UIPickupItemManager to show dropped items nearby character and show as list and allow player to select item to pick it up.

Fix duplicating item when enhance socket items.
Fix UIStorageItems's generated item UIs not deselected when uiItemDialog hidden.
Fix CharacterAlignOnGround not working correctly.
Fix invalid AmmoItem create menu and its item type.
Fix UIOwningAmmoAmount not register events correctly.

Update MySqlConnector to version 1.0, it have an breaking changes and have to changes namespace to MySqlConnector. So developer have to update FacebookAuth or GooglePlayAuth packages.
Make it don't change item's title text color if ItemRefine -> titleColor 's alpha is 0.

Use GetOrAddComponent (from GenericUtils class) to codes like:

var comp = GetComponent<Comp>();
if (!comp)
  comp = gameObject.AddComponent<Comp>();

Improve find ground function for drop item and spawn entities.
Remove events registration from UISceneGameplay, it will add an UIOwning... to UI component to register events.
Move events registration codes from UIOwningStorageItems to UIStorageItems class and also remove UIOwningStorageItems.
Move dealing events registration codes from UISceneGameplay to UIDealing class.
Move item update events registration codes from UISceneGameplay to UIDismantleItem, UIEnhanceSocketItem, UIRefineItem and UIRepairItem class.
Move events registration codes from UISceneGameplay to UIDealing class.
Move events registration codes from UISceneGameplay to UIDealing class.
Add LifeTime settings to BuildingEntity, building will be destroyed automatically by its life time. If it's <= 0, it's no limit life time.

Next version I will use Unity version 2019.4.5f1. I want to use its new prefab features to remake demo UIs. And also want to remake input system by using new Unity's input system.