Project data
Project data for the graph

GET /v2/project_data
Return all the project data

GET /v2/project_sessions/:project_session_id/project_data
Return all the project data of the given Project session

GET /v2/project_data/:id
Get a project datum

POST /v2/project_data
Create a project datum

PATCH /v2/project_data/:id
Update a project datum

PUT /v2/project_data/:id
Update a project datum

DELETE /v2/project_data/:id
Destroy a project datum