Merge pull request cvat-ai#4556 from openvinotoolkit/release-2.1.0

release v2.1.0

Merge pull request cvat-ai#4422 from openvinotoolkit/release-2.0.0

Release v2.0.0

Alpha version of 2.0.0

Release v1.7.0

Release v1.6.0

Release v1.5.0

Merge branch 'release-1.4.0'

Release v1.3.0 on 3/31/2021

Merge branch 'release-1.2.0'

Update CHANGELOG