Feature: Added a column called print in bill to the table customer.

This will prevent printing all customer's names and phone numbers in the bill in case of simple walkins.
This is a breaking change as there is schema changes in the database.
It also bolds the customers who are to be printed in the bill in the running tables list.

import.sh

@@ -86,9 +86,11 @@ if [ $docker -eq 1 ]
 then
   docker start "$doname" || exit
   docker exec -it "$doname" alembic upgrade 48bc1c7c07ce || exit
+  docker exec -it "$doname" alembic upgrade e5e8acfc6495 || exit
 else
   cd "$parent_path"/barker || exit
   alembic upgrade 48bc1c7c07ce || exit
+  alembic upgrade e5e8acfc6495 || exit
 fi
 
 rm -f "$parent_path"/csv/*.csv "$parent_path"/csv/csv.tar.zip || exit