Add geting all Expenses list functionality

Add a method in orther to get all Expenses list in database.
A bug fixed which in fact was a logic mistake and instead of checking to falsy value, true was expected by mistake.
New Activity added

Add new activity to manifest.
Debuggable turned to true as well.
Expense list menu link

Add expenses list activity to menu so users can navigate to that activity.
Wire Expenses list menu to its activity
Closing database in its method
Extra menu was added!
Menu title id name changed
Duplicate title name

A string value was added for Menu title and also for Menu activity title which combined together.
Solve an issue about SQL query

Also instead of returning ArrayList<> type it returns List<> type.
Expenses list acitivity layout file
Expense model class

This class implements Parcelable class which makes it possible to pass object of this class from an activity to another activity.
Expense list activity

Expesnes list being shown by this activity.
Each item in list and clickable so user user click (touch) they will be sent to Expense Detail Activity for showing selected item's detail.
Show each expense detail

After clicking (touching) each expense in expense list activity, user will send to another activity as expense detail so user can see detail of selected expense item in exoenses list.