Move all shape classes from Shapes project to Shapes.Library project

[sweep-ai[bot]]

Description

This PR moves all shape classes from the Shapes project to the Shapes.Library project. The shape classes are now organized in the Shapes.Library project, which is intended to be a library that can be referenced by other projects. This improves code organization and reusability.

Summary of Changes

• Deleted the shape classes from the Shapes project.
• Created the shape classes in the Shapes.Library project.
• Updated the project references in the Shapes.Tests project to reference the Shapes.Library project instead of the Shapes project.

Please review and merge this PR. Thank you!

Fixes #26.

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[sweep-ai[bot]]

GitHub actions yielded the following error.

The command that failed is dotnet build. Here are the relevant lines from the logs:

##[error]D:\a\Shapes\Shapes\Shapes\Program.cs(7,27): error CS0234: The type or namespace name 'Square' does not exist in the namespace 'Shapes' (are you missing an assembly reference?) [D:\a\Shapes\Shapes\Shapes\Shapes.csproj]
Build FAILED.
##[error]D:\a\Shapes\Shapes\Shapes\Program.cs(7,27): error CS0234: The type or namespace name 'Square' does not exist in the namespace 'Shapes' (are you missing an assembly reference?) [D:\a\Shapes\Shapes\Shapes\Shapes.csproj]
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:10.78
##[error]Process completed with exit code 1.

This is likely a linting or type-checking issue with the source code. Update the code changed by the PR. Don't modify the existing tests.

I'm getting the same errors 3 times in a row, so I will stop working on fixing this PR.