BaseboardManagement controller to readonly

[pokearu]

Description

Changes convert BaseboardManagement controller to only fetch the current power status of the machine BMC.
Also removed pause annotation as they are unused.

Why is this needed

This enforces the actions only from BMCJobs, this prevents overlap in state between BaseboardManagement controller and BMCJobs.

Checklist:

I have:

• updated the documentation and/or roadmap (if required)
• added unit or e2e tests
• provided instructions on how to upgrade

[codecov-commenter]

Codecov Report

Merging #10 (d08c61e) into main (4dc2085) will decrease coverage by 0.66%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #10      +/-   ##
==========================================
- Coverage   21.45%   20.78%   -0.67%     
==========================================
  Files           4        4              
  Lines         289      279      -10     
==========================================
- Hits           62       58       -4     
+ Misses        219      215       -4     
+ Partials        8        6       -2     

Impacted Files	Coverage Δ
controllers/baseboardmanagement_controller.go	74.35% <100.00%> (+3.90%)	⬆️

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