Add handmade form and grid for manufacturers

[Ben-Ho]

this should showcase how to implement nested data in form and grid

missing

• collapsing fieldset does not disable validation (required-validation) of fields => follow up pull-request
• there are several options how to group fields, check if used correctly (found docs for FieldSection, should probably not be used in this usecase)
• fieldset's are statically collapsed but should default-state should probably depend on wrapped fields containing data => follow up pull-request
• probably there should be a case where collapsing set's some "address enabled"-field to keep data but disable usage => follow up pull-request

[nsams]

What is your plan for missing?

[Ben-Ho]

What is your plan for missing?

Discuss this topics with you and @johnnyomair, as I don't know if I'm using the correct components, or if some of them need improvements, and if we want to support the last point.

[nsams]

@nsams what do you think of using filter in copyData?

in ProductsGrid we filter in copyData. And we type better.

We should not introduce too many changes here and address those in a separate PR.