v0.2.0

Release notes

Added

• Sections about code standards, code styles, documentation guidelines for
  C/C++, Python and Rust.
• File templates for C/C++ and Python.
• New document related to developer specific guidelines can be found in
  docs/developer_guidelines.md. It contains section about commits.
• Documentation related to gitlint tool, it can be found in
  tools/gitlint.
• Section about GitHub labels.
• Created draft_ideas.md file for storing unused work that might be useful
  in the future.

Changed

• General project structure. Main README.md now serves as a landing page,
  from where users can jump to other documents. Contents of the old README
  were moved to docs/github_project_guidelines.md.
• Various documents related to tooling, such as clang-format and gitlint, are
  now in tools directory.
• Branching model to the Trunk-based development model from GitFlow.
• Moved Production versions section from project guidelines to the
  draft_ideas.md do to not using it.
• Moved section about moving labels to the draft_ideas.md as it adds no
  value and should be automated anyhow.