[ENHANCEMENT] Add locations screen

[mrchrisadams]

Is your feature request related to a problem? Please describe.

We want to represent that a given hosting provider can be active in more than one location. Rather than jamming it into an existing form, we'd like to see if this works better as a separate step in the form wizard we are building.

Describe the solution you'd like

We would add a new step in the multi step form where users would list at least one location that their organisation is active in.

Implementation

We'd need to extend the ProviderRegistrationView with a something like a new entry in the FORMS list.

So here,

FORMS = [
        (Steps.ORG_DETAILS.value, OrgDetailsForm),
        (Steps.SERVICES.value, ServicesForm),
        (Steps.GREEN_EVIDENCE.value, GreenEvidenceForm),
        (Steps.NETWORK_FOOTPRINT.value, NetworkFootprintForm),
        (Steps.CONSENT.value, ConsentForm),
    ]

We'd have something like this, where we create a new OrgLocationForm that contains the relevant convenient formset

FORMS = [
        (Steps.ORG_DETAILS.value, OrgDetailsForm),
        (Steps.LOCATIONS.value, OrgLocationForm),
        (Steps.SERVICES.value, ServicesForm),
        (Steps.GREEN_EVIDENCE.value, GreenEvidenceForm),
        (Steps.NETWORK_FOOTPRINT.value, NetworkFootprintForm),
        (Steps.CONSENT.value, ConsentForm),
    ]

And update the templates accordingly:

TEMPLATES = {
        Steps.ORG_DETAILS.value: "provider_registration/about_org.html",
        Steps.LOCATIONS.value: "provider_registration/locations.html",
        Steps.SERVICES.value: "provider_registration/services.html",
        Steps.GREEN_EVIDENCE.value: "provider_registration/evidence.html",
        Steps.NETWORK_FOOTPRINT.value: "provider_registration/network_footprint.html",
        Steps.CONSENT.value: "provider_registration/consent.html",
    }

[tortila]

Accept multiple locations in the registration form

[mrchrisadams]

Closing this as we resolved it in #378

#378