WT -> BCC Invoice Enhancement -> Lets not show zero cost entries in adjustment sections

In case there are zero cost entries in adjustment sections - lets not show them in adjustments

As per our discussions for billing sections -

1. if rate is not mapped / not eligible : show blank cost
2. if rate is mapped and eligible - zero costs is mentioned in the rate : show zero costs

CC - Rakesh Roy Venkatesh Pujari Hrishikesh Deshpande