Support ReadyToRun format

[doyenho]

Confuserex on C# 6.0 ReadyToRun image, it appear error:
Assembly does not appear to be a .NET assembly: ".NET data directory RVA is 0".

[sunnamed434]

If file doesn't have dotnet rva seems like this file compiled into native code, im sure there's should be a dll file instead of exe, use the dll one for the obfuscation