Add Domestic calling rate 0845 in admin portal

In the admin portal - Billing - Calling rates - Domestic rates - United Kingdom Non-Geo Destinaton to be added also the code 0845 next to 0843 and 0844 because it is similar as per Day 2 Support confirmation. Also to be added to the table in this document https://download.avaya.com/css/public/documents/2758774