Add Identity support to dev environment

[juniortaeza]

Desired Outcome

This pull request adds support for Identity in the Dev Environment.

Implemented Changes

Describe how the desired outcome above has been achieved with this PR. In particular, consider:

• created ci/identity policy, secrets, and users file
• refactored ./dev/start script to include Identity support
• added user/password prompt flow to authenticate via Identity
• added function that fetches OIDC code from Identity (mimics browser authentication)

Definition of Done

At least 1 todo must be completed in the sections below for the PR to be merged.

Changelog

• [ ] The CHANGELOG has been updated, or
• [X] This PR does not include user-facing changes and doesn't require a CHANGELOG update

Test coverage

• [ ] This PR includes new unit and integration tests to go with the code changes, or
• [X] The changes in this PR do not require tests

Documentation

• [ ] Docs (e.g. READMEs) were updated in this PR
• [ ] A follow-up issue to update official docs has been filed here: [insert issue ID]
• [X] This PR does not require updating any documentation

Behavior

• [ ] This PR changes product behavior and has been reviewed by a PO, or
• [ ] These changes are part of a larger initiative that will be reviewed later, or
• [X] No behavior was changed with this PR

Security

• [ ] Security architect has reviewed the changes in this PR,
• [ ] These changes are part of a larger initiative with a separate security review, or
• [X] There are no security aspects to these changes

[codeclimate[bot]]

Code Climate has analyzed commit 03abeeb9 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 82.2% (0.0% change).

View more on Code Climate.