post https://api.seismic.com/planner/v2/spaces//projects
Create a project.
A project can include not only its main attributes but also custom properties and associations.
Custom properties can be discovered through the custom property endpoint and added to a project as long as the custom property has a designated project scope.
Assoications can either be existing tasks without a project or a piece of content from the library that can be discovered via the Library APIs.