Determining that enumerations only have Variant equal

Examples

```rust use enumvarianteq::{,enum_variant_eq_derive::};

[derive(Debug, EnumVariantEq)]

enum TestEnum { Unit, EmptyUnNamed(), UnNamed(i8), UnNamed2(i8, u8), EmptyNamed {}, Named { x: i8 }, Named2 { x: i8, y: u8 }, } use TestEnum::*; assert!(Unit.enumvarianteq(&Unit)); assert!(UnNamed(5).enumvarianteq(&UnNamed(8))); assert!(Named { x: 5 }.enumvarianteq(&Named { x: 8 })); ```

Errors

EnumVariantEq only applies to enumerations. If it is violated, the compilation will panic ```rust

[derive(EnumVariantEq)]

struct S; error: #[derive(Debug, EnumVariantEq)] | ^^^^^^^^^^^^^ = help: message: Type Is Not Enum ```

Other:

Build Ast Error