Add reading and tests for status

[jacobbieker]

Pull Request

Description

Adds step 2 of the https://github.com/openclimatefix/nowcasting_api/issues/106

Fixes #

How Has This Been Tested?

Unit test

• [x] Yes

If your changes affect data processing, have you plotted any changes? i.e. have you done a quick sanity check?

• [ ] Yes

Checklist:

• [x] My code follows OCF's coding style guidelines
• [x] I have performed a self-review of my own code
• [x] I have made corresponding changes to the documentation
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] I have checked my code and corrected any misspellings

[codecov-commenter]

Codecov Report

Merging #56 (ddb248f) into jacob/status (1e025d2) will increase coverage by 0.01%. The diff coverage is 100.00%.

@@               Coverage Diff                @@
##           jacob/status      #56      +/-   ##
================================================
+ Coverage         98.48%   98.50%   +0.01%     
================================================
  Files                16       16              
  Lines               662      668       +6     
================================================
+ Hits                652      658       +6     
  Misses               10       10              

Impacted Files	Coverage Δ
nowcasting_datamodel/read/read.py	99.31% <100.00%> (+0.02%)	:arrow_up:

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