Landed cost tweaks

To the Landed Cost flow have been implemented the following changes:

• “%” symbol is added to the “Percent” column on the “Select Items to Add Landed Cost” panel
• “Add Bill Items” panel

• • displayed Bills in statuses Open, Paid, Proforma, In Review
  • added filter “SLT #” to the filter panel
• “Landed Cost Info” panel

• • have been added columns:
    • Qty Applied. Qty that was Landed Cost applied to
    • Date Applied. Date when was Landed Cost applied to
    • User. The user that logged into the system and initiated Landed Cost applying