Added QRcodes, nonInterpolated image for rendering pixel-appropriate images
Added custom segue to dismiss modal view controller. Added new color file. Added ItemViewController to display inventory item
Added details to ItemViewController -- category, description and date received
Added segue to show item from table view
Added code for Dismiss segue. Added dateReceived to inventory table, added soldinventory table
Added teal color (taken from Repurpose website)
Added sellItem function to DB manager -- moves item from inventory table to soldinventory table