Rules
A rule for a project

GET /v2/rules
Return all the rules

GET /v2/project_sessions/:project_session_id/rules
Return all the rules of the given Project session

GET /v2/rules/:id
Get a rule

POST /v2/rules
Create a rule

POST /v2/project_sessions/:project_session_id/rules
Create a rule for the given Project session

PATCH /v2/rules/:id
Update a rule

PUT /v2/rules/:id
Update a rule

DELETE /v2/rules/:id
Destroy a rule