Bazel support and tag release for individual repos

[arpit15]

Problem
I want to build in-process triton server APIs. I use bazel build system. This requires to create a WORKSPACE entry for each individual github repos in the triton ecosystem like core, backend, third-party etc. To create those entries, I need a zip version of the repos at specific releases.

Describe the solution you'd like

1. Support bazel natively as it is the goto tool for industry.
2. It would be great to have a release tag for individual repos as is done for the server repo. This would allow to download individual repos via the release tag.

Describe alternatives you've considered

1. Use the commit id to create download urls and bazel workspace entries.