Add the month peak and the tarif average.

[gjong]

Proposed change

Add new sensors for:

• month peak power as well as the time it was measured
• average power during the tarif

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (which adds functionality to the application)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.37%. Comparing base (c8472c4) to head (5ec253c).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #15      +/-   ##
==========================================
+ Coverage   93.11%   93.37%   +0.26%     
==========================================
  Files          10       10              
  Lines         421      438      +17     
==========================================
+ Hits          392      409      +17     
  Misses         29       29              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.