added initial data base
goods table added
added possibility to add goods to transactions
and perform waiting for payment transactions
highlighting different transactions by different color
database updated
updating database with actual goods
adding csv, xls files with database tables
fixed bug with floating representation in prices line edit
added possibility to edit fields during selling and purchasing
now confirm selling and purchasing buttons work correctly
added fields cash and client order price
updating db
update DB to bolon' obolon goods
Improved DB structure
fixed some bugs
added goods model
conv file to db format
added goods check logic
fixed bugs
added icons to goods
logic moved to models