Temperature and CPU Fix

[UrbanTechIO]

Proposed change

Type of change

• [ X] Bugfix
• [ X] New feature
• Code quality improvements to existing code or addition of tests
• Documentation

Additional information

Checklist

• [ X] The code change is tested and works locally.
• The code has been formatted using Black.
• Tests have been added to verify that the new code works.
• Documentation added/updated if required.

[UrbanTechIO]

Hello @tomaae , I have made minor changes to the code fixing the issue about fetching the CPU information on Raspberry Pi, and getting the CPU temp data from the plugin and populate a temperature sensor.
Can you look at it and accept the pull request.