xF2 Add-on [AP] Additional User Onboarding Tasks 2.0.1

• Return early if $entity->isUpdate() is true in MessageCount & UserHasPostedXTimes tasks

• Rebase off User Onboarding 2.0

• Fix Trying to get property 'message_count' of non-object
• Create task: "User has verified their Xenforo license"
• Create task: "User has posted in category"
• Create task: "User has posted X times"

• New task: User has made a post / message count is greater than 0