Gorelease Added

[yindia]

Read then delete

TL;DR

1. Goreleaser added for managing kubectl-flyte build and release.
2. Github action added for releasing the binary
3. Added version package

Type

• Bug Fix
• Feature
• Plugin

Are all requirements met?

• Code completed
• Smoke tested
• Unit tests added
• Code documentation added
• Any pending items have an associated Issue

Complete description

How did you fix the bug, make the feature etc. Link to any design docs etc

Tracking Issue

flyteorg/flyte#120

Follow-up issue

flyteorg/flyte#120

[kumare3]

cc @EngHabu who added goreleaser to flytestdlib

[yindia]

@kumare3 @EngHabu I removed krew changes from this PR. There is one constrain, for krew plugin publish we need to do it manually the first time and for creating PR in krew we need our binary in GitHub release

[codecov-commenter]

Codecov Report

Merging #164 into master will increase coverage by 0.30%.
The diff coverage is 100.00%.

[EngHabu]

Thank you a ton!

[EngHabu]

I'm trying to figure out the best setup to make github actions run. I understand they won't run here but I think if you merge your changes to your own master, they should (e.g. https://github.com/evalsocket/flytepropeller/compare/evalsocket:master...evalsocket:fix-121?expand=1)

You will need to set a github secret in your fork called flytegithub_repo with value evalsocket/flytepropeller to be able to build and push images to your github docker registry.

[yindia]

@EngHabu please review it #170