removed stupid splash screen in ProductCardViewActivity
change DatabaseHelper constructor
add a method to delete table in database helper
update Product model to include a new parameter productGroup
update product card view activity to debug database operations
make various fields public in databasehelper to access from outside
add additional constructor to product model
add additional constructor to product model
fix a bug with sql query
initiate the card view adapter from the database instead
small changes on how to handle database operations