Close redundant PR - functionality exists in hexa-extras branch

[Copilot]

This PR duplicates work already completed in the hexa-extras branch. Both branches add ImGuizmo, ImNodes, and ImPlot support with identical commits (9b98156 through 5618619).

Branch comparison

• This PR: Contains commits adding Hexa.NET.ImGuizmo, ImNodes, and ImPlot packages plus demo implementations
• hexa-extras: Contains the same commits with identical functionality
• main (v2.1.9): Does not yet have these packages

Recommendation

Close this PR and merge hexa-extras when ready. The branches diverge from the same base (547afae) and differ only by an empty "Initial plan" commit in this PR.

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[matt-edmondson]

@copilot I wanted you to check if the functionality that the hexa-extras branch implements was already in main, or whether that branch needed to be merged in

[Copilot]

@copilot I wanted you to check if the functionality that the hexa-extras branch implements was already in main, or whether that branch needed to be merged in

The hexa-extras branch functionality is not in main yet and needs to be merged.

Current state:

• main branch: Does not have Hexa.NET.ImGuizmo, ImNodes, or ImPlot packages
• hexa-extras branch: Contains all three packages, demo implementations (ImGuizmoDemo.cs, ImNodesDemo.cs, ImPlotDemo.cs), and an ImGuiExtensionManager for automatic initialization

The hexa-extras branch should be merged to main to add this functionality to the repository.