#74 efficiency screen components

[sumershinde22]

Changes

• Completed the view of Efficiency Screen
• Linked controller to qml and controller to the mock model

Screenshots

To Do

Any remaining things that need to get done

• Adjust controller to match the values being displayed
• Make controller implement the button controller class
• add mock model values as necessary to ensure proper adjustment of the values in accordance to how it should function in reality
• Add Video of it functioning as its supposed to

Checklist

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Closes #74