Adding CheckoutActivity and resulting xml files
Merge branch 'develop' of https://github.com/ehis/SmartShop into develop

# By ngoctung4him (4) and Sean Gibeault (1)
# Via ngoctung4him (7) and Sean Gibeault (1)
* 'develop' of https://github.com/ehis/SmartShop:
  added resource files for new implementation
  -added shopping cart activity
  integrating list view in shopActiivity
  changes iml file to consensu
  save current work

Conflicts:
	src/main/res/values/strings.xml