Created seguea which connect TableOrderView with OrderItemView
Renamed constants by codConventions
Created Prototype cell instead of xib-files for OrderItemCell and OrderTotalCell
methods
- (void)awakeFromNib
-(id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
were removed from OrderItemCell and OrderTotallcell class
In OrderItemModel.h in property *menuItemModel changed weak to strong
Merge remote-tracking branch 'origin/master'
1. Added Protocol “POrderItems” which connect prototype cell with TableView
2. - (IBAction)ClickOnStepper: (id)sender  automatically recount total price
3. In OrderModel added method  - (instancetype) init;