Remove FormatWith extension

[SimonCropp]

• prevents redundant array allocation when the singular or params based overloads of string.format should be used
• prevents the optimizations-for-interpolated in c#10 https://blog.jetbrains.com/dotnet/2022/02/07/improvements-and-optimizations-for-interpolated-strings-a-look-at-new-language-features-in-csharp-10/
• prevents ide tooling from suggesting more readable code via interpolation

Handling change:

• Replace usage of StringExtensions.FormatWith(format, params args) with a call to string.Format(format, args)
• Replace usages of StringExtensionsFormatWith(format, provider, params args) with a call to string.Format(provider, format, args)