Updated DBAdapter

Deleted uncommented code, added choosen nbr of drug in
getAllPharmaciesWithDrugId, added choosen day getCurrentDay() and time
getCurrentTime.
Updated DrugsActivity

Updated DrugsActivity with an intent that has extras - choosenDrugID and
choosenNbr.
Updated PharmaciesActivity

Updated PharmaciesActivity with deleting Calendar and use the methods
getCurrentTime and getCurrentDay in DBADapter instead.