chore(release): v2.1.0

[theoludwig]

What changes this PR introduce ?

• Delete Cache dependencies step in CI so hopefully it solves the issue with the CI failing (as discussed in Gitter chat)
• Downgrade sqlite3 from 5.0.1 to 5.0.0 since sqlite3@5.0.1 have issues. See: Failed at the sqlite3@5.0.1 install script. TryGhost/node-sqlite3#1424
• Add husky so everytime we commit, it verify the commit message, and run npm run lint also to avoid installing husky when installing the package, we use pinst made by the creator of husky. See: https://github.com/typicode/pinst
• Add release-it and commitlint so it generates the changelog automatically based on commit messages also automatically choose the version number to increase based on semver.
• Add markdownlint, see: https://github.com/DavidAnson/markdownlint
• Cleanup the README, so we only display how to use the package for the current latest version, if users want to know how to use it for older versions of TypeScript they can see in the Changelog.

Is there anything you'd like reviewers to focus on?

Once this PR has been merged, we could create a new release on GitHub, so it automatically release a new version on npm if you set correctly NPM_TOKEN secret as it was suggested in this PR: #871.

We should use https://github.com/zeke/semantic-pull-requests.

Note: Git is showing a large number of changes but in fact, it's because I installed a few new dependencies so package-lock.json has lot of changes.

[codecov]

Codecov Report

Merging #913 (f84f594) into master (1bb4e71) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #913   +/-   ##
=======================================
  Coverage   95.20%   95.20%           
=======================================
  Files         117      117           
  Lines        1127     1127           
  Branches      129      129           
=======================================
  Hits         1073     1073           
  Misses         22       22           
  Partials       32       32           

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[RobinBuschmann]

👍