first draft of updating D4R to .NET 10

[Mikhinja]

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• The code base is in a better state after this PR
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[Copilot]

Pull Request Overview

This PR updates DynamoRevit to support .NET 10 by adding build configurations and updating dependency versions. The changes prepare the codebase for migration from .NET 8.0 to .NET 10.0 while maintaining backward compatibility.

• Adds NET100 platform configurations alongside existing NET80 configurations
• Updates Dynamo core package references from version 3.6.1.9895 to 4.0.0-beta2630
• Modifies build scripts to use dynamic library subfolder references

Reviewed Changes

Copilot reviewed 5 out of 893 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/DynamoRevit/DynamoRevit.csproj	Updates copy targets to use dynamic library path variables
src/DynamoRevit.All.sln	Adds NET100 Debug and Release configurations for all projects
src/Config/packages_versions.props	Updates DYNAMOCORE_VERSION to 4.0.0-beta2630
src/Config/packages.aget	Updates all Dynamo package references to 4.0.0-beta2630
src/Config/CS_SDK.props	Adds NET100 platform support with net10.0-windows target framework

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[Copilot]

The DCoreLibSubFolder for NET100 platform should be 'net10.0' not 'net8.0' to match the target framework being used for .NET 10.

Suggested change

	<DCoreLibSubFolder Condition="'$(Platform)' == 'NET100'">net8.0</DCoreLibSubFolder>
	<DCoreLibSubFolder Condition="'$(Platform)' == 'NET100'">net10.0</DCoreLibSubFolder>