Bump version to 0.2.0 (uber#382)

### Summary:
Update the Neuropod version to `0.2.0`

### Test Plan:
CI

Bump version to 0.2.0rc2 (uber#368)

Update the Neuropod version to `0.2.0rc2`

Bump version to 0.2.0rc1 (uber#335)

Update the Neuropod version to `0.2.0rc1`

Bump version to 0.2.0rc0 (uber#323)

Update the Neuropod version to `0.2.0rc0`

Add the neuropod_multiprocess_worker to the release package (uber#213)

Add factory functions for creating tensors (uber#178)

Bump Neuropod version to 0.1.0 (uber#157)