DESCRIPTION:
Shares an image file on a predefined Facebook page.
Check out the following link for more info about creating a Facebook app:
http://unreal4mirror.com/facebook/
INPUTS:
- Target [PhotoComponent]: Virtual Mirror photo component object.
- Photo File Name [FString]: Absolute path to the image file.
- URL [FString]: Graph API url
- Token [FString]: Graph API token
- Message [FString]: Message for the photo