Feature/rotate screen

[crismc]

Description

Added rotate configuration option, allowing the screen to be rotated counter clockwise based on the given value.

Related Issue

This PR fixes or closes issue: fixes Display Rotation https://github.com/crismc/homeassistant_addons/issues/1

Motivation and Context

Requested feature to allow for upside down LED

How Has This Been Tested

Deployed branch on fresh RPI installation and run on all screens

Types of changes

• [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
• [x] 🚀 New feature (non-breaking change which adds functionality)
• [ ] 🌎 Translation (addition or update a translation)
• [ ] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have tested the change locally.