Add access to Core.Wpf for Player

[saintentropy]

Purpose

Add internal access for DynamoPlayerExtension to Core.WPF

Declarations

Check these if you believe they are true

• [ ] The codebase is in a better state after this PR
• [ ] Is documented according to the standards
• [ ] The level of testing this PR includes is appropriate
• [ ] User facing strings, if any, are extracted into *.resx files
• [ ] All tests pass using the self-service CI.
• [ ] Snapshot of UI changes, if any.
• [ ] Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• [ ] This PR modifies some build requirements and the readme is updated

Release Notes

(FILL ME IN) Brief description of the fix / enhancement. Mandatory section

Reviewers

@mjkkirschner @BogdanZavu

FYIs

@twastvedt @QilongTang

[QilongTang]

The regression reported is a fluke DynamoPythonTests.PythonTestsWithLogging.DynamoPrintLogsToConsole

[QilongTang]

@saintentropy @BogdanZavu Is this needed in 2.16.0? If yes, then this should go in soon