Update to version 0.2

[wchung-ni]

• This contribution adheres to CONTRIBUTING.md.

What does this Pull Request accomplish?

Update nisync API version from 0.1 to 0.2 and add release message in CHANGELOG.md

Why should this Pull Request be merged?

To update the version before publish to Pypi

What testing has been done?

1. Run 'pytest -v'
2. Run command 'poetry run ni-python-styleguide lint' and 'poetry run ni-python-styleguide fix'
3. Check the appearance of CHANGELOG.md and validate the link.
   

[wchung-ni]

@sjasonsmith I updated the CHANGELOG.md and version. Is this look good before we publish to pypi ?

[tkrebes]

@sjasonsmith I updated the CHANGELOG.md and version. Is this look good before we publish to pypi ?

Yes, the types of changes seem reasonable. Once the first major release occurs, the version numbers are incremented for the following reasons

• major - API compatibility breaking changes
• minor - New features
• update - Bug fixes, performance improvement, etc.

However, when the version is in the form 0.x.y, any changes to x the minor version may be seen as compatibility breaking changes. So, some decide to change y for new features instead of x. Anyway, I think it is fine to increase the minor version (i.e x) in this case.