Add oauth pwd claim

[shalper2]

Features

List any features you're adding to this app (e.g. new actions, parameters, auth methods, etc.)

• Adding the ability to make password claims for the OAuth flow

Manual Documentation

Added new fields for use in password claims for OAuth authentication flows. These fields are `oauth_password` and `oauth_username` and are optional. They are optional and take lower precedent than basic auth but higher precedent than token based OAuth.

The following changes require documentation in manual_readme_content.md:

• New, updated, or removed REST handlers
• New, updated, or removed authentication methods, especially complex methods like OAuth
• Compatibility considerations with respect to deployment types (e.g. actions that cannot be run on cloud or an automation broker)

• I have verified that manual documentation has been updated where appropriate

[github-actions]

Thank you for your submission! We will take a look as soon as we can.