Support give change on Check Payments on POS

Give Change button:

• Was added on Check Overpayment pop-up to POS/Invoice:
  1. after clicking on the button:
     1. the Overpayment pop-up is closed;
     2. Change Given Amount is added to the order: 
        1. POS;
        2. Invoice;
     3. Change Given Amount is added to  PDF:
        1. POS:
           1. PDF;
           2. Print Receipt;
        2. Invoice PDF;
     4. the logic is like for SO/Invoice PDF/Receipt;
  2. the logic is the same as for SO Check Overpayment.