Bump to 0.16

[tedinski]

Description of changes:

This commit may need updating to change the rust toolchain based on whether we merge:

• Upgrade rust toolchain to 2022-11-20 kani#1927

Testing:

• How is this change tested?

• Is this a refactor change?

Checklist

• Each commit message has a non-empty body, explaining why the change was made
• Methods or procedures are documented
• Regression or unit tests are included, or existing tests cover the modified code
• My PR is restricted to a single feature or bugfix

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 and MIT licenses.

[celinval]

Don't forget to update the toolchain! :)