Dockerize Pebblo

[srics]

Create a Dockerfile for pebblo to quickly run pebblo in a containerized environment.

Tasks:

• Add Pebblo Dockerfile
• CI: Add docker image push on release/tag

[akramIOT]

@srics : I will own and start working on this Pebblo Open source contribution from my side. Kindly let me know if you want to assign this to me ?

[srics]

@akramIOT This change recently went in #277 (this issue should have been tagged). Let us identify a few other roadmap items that you can grab. Thanks for your interest in contributing!

[srics]

@siddheshwar-more will update CI pipeline to push with :latest tag