PR - Jira issues: [DYN-3890] | [DYN-3963]

[M-JULIANI]

Description

This PR addresses and fixes the following Jira issues:

• [DYN-3890] Pin add/delete should set workspace hasunsavedchanges = true. https://jira.autodesk.com/browse/DYN-3890
• [DYN-3963] Dynamo crashes when freezing a node with pinned wire. https://jira.autodesk.com/browse/DYN-3963

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

Reviewers

@QilongTang

FYIs

@SHKnudsen

[QilongTang]

Parallel CI passed at https://master-5.jenkins.autodesk.com/job/Dynamo/job/DynamoSelfServe/job/pullRequestValidation/3585/