Create Sale order & POS order from the item, by item screen

Create New Sale order / Create New POS multi-button:

• Was added to the Item list to: All / Inventory / Non Inventory / Service / Group / Assembly;
• Is always enabled;
• If some items are checked after clicking on the button, the SO/POS edit form is opened with checked items;
• If no one item is checked after clicking on the button, the empty SO/POS edit form is opened.