Providing all contribution guideline

[Nucs]

There should be a resharper solution/projects configuration for the refactoring rules based on the current styling to make contribution easier. This is essential if there will be contribution guidelines in the future.

[mathpaquette]

Ill take care of it. Thank you @Nucs

[hunterfries]

It might be more friendly instead to export the resharper style settings to an editorconfig as described here: https://blog.jetbrains.com/dotnet/2019/03/28/export-editorconfig-code-style-optimize-references-sdk-projects-resharper-2019-1-eap-updates/