Submit user and organisation/department registration requests to SDE

[pjmonks]

Description

Once an anonymous user fills in the new registration form, the submit action must create a pair of linked SDE requests - one for creation of a user account, another for the remainder of the registration - and submit them to the SDE.

See the planning notes for the registration process here:

• Planning: Registration of Users, Organisations and Departments #445

Depends on

• Create a registration page to request a user account for Mauro/SDE #442
• MauroDataMapper/sde-core#235
• MauroDataMapper/sde-core#234
• MauroDataMapper/sde-core#246
• MauroDataMapper/sde-core#247
• MauroDataMapper/sde-core#248

Requests

Assuming that the form data is valid, two requests must be created:

• CreateResearchUserRequest
• One of JoinOrganisationRequest, CreateOrganisationRequestorCreateDepartmentRequest`

Once both are created, they must also be linked together so that the CreateResearchUserRequest is marked as the previous request to the next one.

Both requests must also be submitted and linked to the "anonymous" research user (this might be able to be done on the sde-core side).

The initial states of the request must be:

• CreateResearchUserRequest --> Awaiting Pickup
• Next request --> Draft