Update to latest openapi XSD

Author: pvdissel

subprojects/schema/src/main/xsd/openapi-4.0.0.xsd

@@ -13,6 +13,7 @@
                 <xs:element name="SessionId" minOccurs="1" maxOccurs="1" type="xs:string"/>
                 <xs:element name="Name" type="xs:string" minOccurs="1" maxOccurs="1"/>
                 <xs:element name="MergedBasket" type="xs:boolean" minOccurs="1" maxOccurs="1"/>
+                <xs:element name="CustomerId" type="xs:string" minOccurs="1" maxOccurs="1"/>
             </xs:sequence>
         </xs:complexType>
     </xs:element>
@@ -96,6 +97,7 @@
             <xs:element name="AvailabilityDescription" type="xs:string" minOccurs="0" maxOccurs="1"/>
             <xs:element name="Comment" type="xs:string" minOccurs="0" maxOccurs="1"/>
             <xs:element name="Seller" type="Seller" minOccurs="0" maxOccurs="1"/>
+            <xs:element name="bestOffer" type="xs:boolean" minOccurs="0" maxOccurs="1"/>
         </xs:sequence>
     </xs:complexType>
 
@@ -420,4 +422,4 @@
         </xs:sequence>
     </xs:complexType>
 
-</xs:schema>
+</xs:schema>