Documentation release script implementation

[KineticCookie]

Reimplemented old faulty sh script using minimal python3.5 (without external deps).

The algorithm is:

1. Check the version in folder
2. If there is a version - parse it as semver
3. If it's a not a semver jump to 6
4. leave only {major}.{minor}.(max(patch))
5. Delete other versions under {major}.{minor}
6. Assign latest version
7. Dump all versions to versions.json
8. Symlink paradox.json file from latest to folder root
9. Symlink latest to the latest version

Tested locally - it works. Need approval and test on remote host.

[KineticCookie]

Tests of the script are successful ✨

1. Created deleteme version of documentation
2. Rewrote dev docs