Changes to List Instruments

added the optional property data/items/knowledge_and_experience_profile to the response with the 200 status

added the required property data/items/complexity to the response with the 200 status

added the required property data/items/days_to_settle to the response with the 200 status

added the required property data/items/product_category to the response with the 200 status

added the required property data/items/trading to the response with the 200 status