Added shift + click to nodes and notes to remove from current group

[johnpierson]

Purpose

This PR adds shift-click remove from group features to nodes and notes.

2022-01-21.14-22-43.mp4

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

Drag adding nodes to groups is awesome. This adds the ability to remove nodes and notes from groups with shift+left click.

Reviewers

@QilongTang

FYIs

@Amoursol

[mjkkirschner]

just my two cents -

• how does this work when the node is inside a nested group?
• automated test would be good to make sure this keeps working though I can see that being difficult.

[johnpierson]

Thanks for taking a look! Nested groups behave how I would expect/want them to. If the node or note is the last in a group it drops the whole group

2022-01-21.14-37-49.mp4

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[QilongTang]

Tested and updated some comments. I found it hard to connect this with a new unit test especially the real-time shift key check. Once the PR check passed, will merge as it is.

[johnpierson]

😱 oh my gosh. My first real contribution to dynamo's code.

[Amoursol]

😱 oh my gosh. My first real contribution to dynamo's code.

The first of many hopefully dude 💪