feat: update entitlements with new properties and functions

[AstreaTSS]

Pull Request Type

• Feature addition
• Bugfix
• Documentation update
• Code refactor
• Tests improvement
• CI/CD pipeline enhancement
• Other: [Replace with a description]

Description

This PR adds new properties and functions to Entitlements - namely, those introduced by One-Time Purchases. Not a whole lot going on here, but it is nice.

Changes

• Added consumed property to Entitlement.
• Added more types to EntitlementType.
• Added consume_entitlement

Related Issues

Test Scenarios

Python Compatibility

• I've ensured my code works on Python 3.10.x
• I've ensured my code works on Python 3.11.x

Checklist

• I've run the pre-commit code linter over all edited files
• I've tested my changes on supported Python versions
• I've added tests for my code, if applicable
• I've updated / added documentation, where applicable

[silasary]

I can't test it, but the code looks good