Part $2$ App Prototype Development $($Marks: $100)$ Learning Units $1$ to $4$ At the end of this specific part, students should be able to: $$ Apply layouts in an app. $$ Use the EditText, NumberFormat and SeekBar in an app. $$ Apply event handling in an app. $$ Create an activity. $$ Apply an intent in an application. For this task you will need to build a fully working prototype. This prototype needs to include all the features listed in the instructions section of this document but based on your own design and user interface layout. You the app performing the following functions: $$ The user must be able to log in to the app using a username and password. $$ The user must be able to create categories that the timesheet entries will belong to$.$ The user must be able to create a timesheet entry, specifying at least the date, start and end times, description, and category. $$ The user must be able to optionally add a photograph to each timesheet entry. $$ The user must be able to set a minimum daily goal for hours worked, as well as a maximum daily goal. $$ The user must be able to view the list of all the timesheet entries created during a user selectable period. If a photo was stored for an entry, the use must be able to access it from this list. The user must be able to view the total number of hours spent on each category during a user selectable period.