chore: Add editorconfig for default conventions

[ghost1face]

Description

This uses dotnet new editorconfig to generate a base .editorconfig file with default rules, no personal preferences, just what's out the box.

This is our starting point for coding style guidelines

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Performance improvement
• Test coverage improvement

Related Issues

Closes #

Changes Made

SPEC Compliance

• This PR implements/fixes spec compliance
• Spec section(s) affected:
• Spec version:

Testing

• All existing tests pass
• Added new tests for changes
• Tested on .NET 8.0
• Tested on .NET 9.0

Checklist

• My code follows the project's coding standards
• I have run dotnet format
• I have added tests that prove my fix/feature works
• New and existing tests pass locally
• I have updated documentation (if needed)
• My changes do not introduce new dependencies

Additional Context

[ghost1face]

Closing, will reopen new