Add F16_lab03.md and fixed issue #4, #10, and #14

[thatonesimon]

• Added F16_lab03.md, an assignment what familiarizes us with our new project.

• Issue #4: Implemented a Powersave function (called by //Powersave [function]) that can disable Wifi, Bluetooth, and /or mute the phone, in order to save phone charge.

• Issue #10: Made commands less strict, removing white spaces (and accounting for this in commands that require more than one part), and making commands not case-sensitive.

• Issue #14: Force phone to ring audibly, even if the phone is on vibrate or mute.

In collaboration with @sayalirkakade. Mentored by @jimmylle.

[jimmylle]

@sayalirkakade @thatonesimon Can you guys do the rest of the issue fixes on separate branches for now unless it pertains to the issues on this pull request.

[thatonesimon]

Of course, we're still working on these issues, but I think as of now we have them closed! You can try running it.

[thatonesimon]

To be a bit more clear, toggling functionality has been integrated into //Wifi and //Bluetooth