Updated MLAPI and fixed inventory item usage

Assets/GameAssets/Entities/Inventory/EquippableItem.cs

Assets/GameAssets/Entities/Inventory/InventoryItem.cs

Assets/GameAssets/Entities/Inventory/InventorySystem.cs

Assets/GameAssets/Entities/Player/PlayerControllerScript.cs

Assets/GameAssets/Entities/Player/PlayerEquipment.cs

Assets/GameAssets/Entities/Player/PlayerInventory.cs

Assets/GameAssets/Managers/GameManager.prefab

Assets/GameAssets/Managers/UI/InventorySlot.prefab

Assets/GameAssets/Managers/UI/InventorySlotUI.cs

Assets/GameAssets/Managers/UI/InventoryUI.cs

Assets/GameAssets/Managers/UI/MessageLogText.prefab

Assets/GameAssets/Managers/UI/MessageLogText.prefab.meta

Assets/GameAssets/Managers/UI/MessageLogTextUI.cs

Assets/GameAssets/Managers/UI/MessageLogTextUI.cs.meta

Assets/GameAssets/Managers/UI/MessageLogUI.cs

Assets/Scenes/SampleScene.unity

Assets/ThirdParty/MLAPI/Lib/MLAPI.dll

Assets/ThirdParty/MLAPI/Lib/MLAPI.pdb

Assets/ThirdParty/MLAPI/Lib/MLAPI.xml

Assets/ThirdParty/MLAPI/OfficialTransports.meta