gnu: Add trytond-stock-shipment-cost-weight.

* gnu/packages/tryton.scm (trytond-stock-shipment-cost-weight): New variable.

gnu: Add trytond-sale-promotion-coupon-payment.

* gnu/packages/tryton.scm (trytond-sale-promotion-coupon-payment): New variable.

gnu: Add trytond-sale-product-recommendation-association-rule.

* gnu/packages/tryton.scm (trytond-sale-product-recommendation-association-rule): New variable.

gnu: Add trytond-sale-product-recommendation.

* gnu/packages/tryton.scm (trytond-sale-product-recommendation): New variable.

gnu: Add trytond-sale-product-quantity.

* gnu/packages/tryton.scm (trytond-sale-product-quantity): New variable.

gnu: Add trytond-sale-invoice-date.

* gnu/packages/tryton.scm (trytond-sale-invoice-date): New variable.

gnu: Add trytond-sale-blanket-agreement.

* gnu/packages/tryton.scm (trytond-sale-blanket-agreement): New variable.

gnu: Add trytond-quality.

* gnu/packages/tryton.scm (trytond-quality): New variable.

gnu: Add trytond-purchase-product-quantity.

* gnu/packages/tryton.scm (trytond-purchase-product-quantity): New variable.

gnu: Add trytond-purchase-blanket-agreement.

* gnu/packages/tryton.scm (trytond-purchase-blanket-agreement): New variable.

gnu: Add trytond-product-price-list-cache.

* gnu/packages/tryton.scm (trytond-product-price-list-cache): New variable.

gnu: Add trytond-marketing-campaign.

* gnu/packages/tryton.scm (trytond-marketing-campaign): New variable.

gnu: Add trytond-inbound-email.

* gnu/packages/tryton.scm (trytond-inbound-email): New variable.

gnu: Add trytond-document-incoming-ocr-typless.

* gnu/packages/tryton.scm (trytond-document-incoming-ocr-typless): New variable.

gnu: Add trytond-document-incoming-ocr.

* gnu/packages/tryton.scm (trytond-document-incoming-ocr): New variable.

gnu: Add trytond-document-incoming-invoice.

* gnu/packages/tryton.scm (trytond-document-incoming-invoice): New variable.

gnu: Add trytond-document-incoming.

* gnu/packages/tryton.scm (trytond-document-incoming): New variable.

gnu: Add trytond-carrier-carriage.

* gnu/packages/tryton.scm (trytond-carrier-carriage): New variable.

gnu: Add trytond-authentication-saml.

* gnu/packages/tryton.scm (trytond-authentication-saml): New variable.

gnu: Add trytond-account-tax-non-deductible.

* gnu/packages/tryton.scm (trytond-account-tax-non-deductible): New variable.