Merge pull request #75 from Posnic/sales-bill

sales bill
Merge pull request #76 from Posnic/sales-bill

sales delivery note
Merge pull request #77 from Posnic/sales-bill

Sales bill
direct sales delivery note
Merge pull request #78 from Posnic/direct-delivery-note

direct sales delivery note
direct sales delivery note approve
Merge pull request #79 from Posnic/direct-delivery-note

direct sales delivery note approve
direct sales
Merge pull request #80 from Posnic/direct-sales

direct sales
sales bill