added health passport
updating billing interface
Merge branch 'master' of github.com:BaobabHealthTrust/module_billing
use authentication
user authentication
user authentication
user authentication
check department id before rendering cart
select category method
select deaprtment method
products method
using user id session
using user id session
using user id session
using user id session
added routes for select department and select category
select category and select department for new invoice interface