Dynamic fields for Asana workflows

[EGonzales]

In order to create really useful workflows with the Asana task integration, we need the due date and assignee to be dynamically completed based on identified trigger object data. 

We want to create a new project for a client everytime the pipeline status changes to "won". Right now, we triger an asana task to be created but need the due date to equal [date of deal win] +1 and the assignee to equal the deal owner.