Add ReflectionExtensions.IsTypeDef(Type) method
Add ReflectionExtensions.IsTypeDef(Type) method

picrap/dnlib,kiootic/dnlib,Arthur2e5/dnlib,jorik041/dnlib,ZixiangBoy/dnlib,0xd4d/dnlib,yck1509/dnlib,ilkerhalil/dnlib,modulexcite/dnlib