feat: log error, when bodyshapes are not enabled in studio (#281)

## [SDK-907](https://ready-player-me.atlassian.net/browse/SDK-907)

## Description

-   Throw error, when body shapes are not enabled in the studio
<img width="1415" alt="image"
src="https://github.com/readyplayerme/rpm-unity-sdk-core/assets/107070960/dd264de4-63ea-45b1-a32a-84d207bc5804">


## How to Test

- Enable body shapes in the studio and test, that shapes are applied and
that no error is thrown
- Disable body shapes in the studio and verify, that error is shown and
avatar is not updated

<!-- Update your progress with the task here -->

## Checklist

-   [ ] Tests written or updated for the changes.
-   [ ] Documentation is updated.
-   [ ] Changelog is updated.

<!--- Remember to copy the Changes Section into the commit message when
you close the PR -->





[SDK-907]:
https://ready-player-me.atlassian.net/browse/SDK-907?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Runtime/AvatarCreator/Scripts/Managers/AvatarManager.cs

@@ -25,6 +25,8 @@ public AvatarCreationResponse(GameObject avatarObject, AvatarProperties properti
     /// </summary>
     public class AvatarManager : IDisposable
     {
+        private const string ERROR_BODYSHAPES_NOT_ENABLED = "Failed to apply body shapes to the avatar. Please ensure body shapes are enabled in your studio application.";
+
         private const string TAG = nameof(AvatarManager);
         private readonly AvatarAPIRequests avatarAPIRequests;
         private readonly string avatarConfigParameters;
@@ -288,9 +290,33 @@ public async Task<GameObject> UpdateAsset(AssetType assetType, BodyType bodyType
             {
                 return null;
             }
+            await ValidateBodyShapeUpdate(assetType, assetId);
+
 
             return await inCreatorAvatarLoader.Load(avatarId, bodyType, gender, data);
         }
+
+        /// <summary>
+        /// Function that checks if body shapes are enabled in the studio. This validation is performed only in the editor.
+        /// </summary>
+        /// <param name="assetType">Assets type that was updated</param>
+        /// <param name="assetId">Asset ID</param>
+        private async Task ValidateBodyShapeUpdate(AssetType assetType, object assetId)
+        {
+            if (assetType != AssetType.BodyShape)
+            {
+                return;
+            }
+
+            var data = await avatarAPIRequests.GetAvatarMetadata(avatarId, true);
+            var hasUpdatedAvatarWithAsset = data.Assets.ContainsKey(assetType) && data.Assets[assetType] == assetId;
+            if (hasUpdatedAvatarWithAsset)
+            {
+                return;
+            }
+            Debug.LogError(ERROR_BODYSHAPES_NOT_ENABLED);
+        }
+
 
         public async Task<Dictionary<AssetType, AssetColor[]>> LoadAvatarColors()
         {