feat: add pov status rpc

[harlanasimov]

Proposed changes in this pull request

add pov status rpc

Type

• Bug fix: (Link to the issue #{issue No.})
• Feature (Non-breaking change)
• Feature (Breaking change)
• Documentation Improvement

Checklist

Write a small comment explaining if its N/A (not applicable)

• Read the CONTRIBUTION.
• All the tests are passing after the introduction of new changes.
• Added tests respective to the part of code I have written.
• Added proper documentation where ever applicable.
• Code has been written according to Golang-Style-Guide

Extra information

Any extra information related to this pull request.

[codecov]

Codecov Report

Merging #39 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master     #39      +/-   ##
=========================================
- Coverage    7.66%   7.66%   -0.01%     
=========================================
  Files          61      61              
  Lines        9807    9813       +6     
=========================================
  Hits          752     752              
- Misses       8993    8999       +6     
  Partials       62      62

Flag	Coverage Δ
#unittests	7.66% <0%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
pov.go	1.1% <0%> (-0.04%)	⬇️

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[golangcibot]

type PovApiStatus should be PovAPIStatus (from golint)