open source hygiene to follow

[nyrahul]

• add README.md
  • brief description
  • quick start guide
• CI
  • license header check
  • build gofmt, gosec, lint, check (just copy for kubearmor primary repo)
  • auto create new image in kubearmor/koach
• Misc
  • Add license header in all files.
  • basic sanity tests

[nthnieljson]

added brief description and quick start guide in this PR #5

[nyrahul]

added brief description and quick start guide in this PR #5

Thanks. Added review comments, change requests in the PR.

[nyrahul]

• installation guide
• extend telemetry fields for other metadata
• Blog post {TOC}