Issue #2600564: Integrate profile into commerce

[subhojit777]

This will cover:

• Add the profile module dependency to order
• Create the “billing” profile bundle and export it to order/config/install
• Create the "address" field on the "billing" profile and export it to order/config/install
• Create a billing_profile reference field on the order (base field definition), add a getter and a setter

[bojanz]

Since we're providing the field ourselves, can we name it address instead of field_address?

[subhojit777]

@bojanz corrected.

[bojanz]

Should be required :)

[bojanz]

Almost there!

[subhojit777]

@bojanz corrected :) is it okay now?

[bojanz]

Almost there!

You added methods to the Order entity, but not to the OrderInterface. Did those changes get lost by mistake?

[bojanz]

We also need a ->setSetting('handler_settings', ['target_bundles' => ['profile']]); This will limit the reference field to the appropriate bundle.

[subhojit777]

@bojanz changes made.

[bojanz]

Verbs in docblocks must be in the third person. "Gets the billing profile."

[subhojit777]

@bojanz comment corrected :)