graphQl-512: added street lines validation

[VitaliyBoyko]

Description (*)

Added validation for Cart Address attribute Street and adjusted tests.

Sample query (By default the address street lines config value equals 2)

mutation {
  setBillingAddressOnCart(
    input: {
      cart_id: "QUOTE_MASK"
      billing_address: {
         address: {
          firstname: "test firstname"
          lastname: "test lastname"
          company: "test company"
          street: ["test street 1", "test street 2", "test street 3", "test street 4"]
          city: "test city"
          region: "test region"
          postcode: "887766"
          country_code: "US"
          telephone: "88776655"
          save_in_address_book: false
         }
         use_for_shipping: true
      }
    }
  ) {
    cart {
      billing_address {
        firstname
        lastname
        company
        street
        city
        postcode
        telephone
      }
    }
  }
}

Response

{
  "errors": [
    {
      "message": "\"Street Address\" cannot contain more than 2 lines.",
      "category": "graphql-input",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "setBillingAddressOnCart"
      ]
    }
  ],
  "data": {
    "setBillingAddressOnCart": null
  }
}

Fixed Issues (if relevant)

1. address.street needs refactoring to support as many lines as defined by admin #512 : address.street needs refactoring to support as many lines as defined by admin

[ghost]

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