Simple rust lib for type assertions.
```rust use assertbound::assertbound;
// assert that ()
implements Debug + Ord + PartialEq<()>
assert_bound!(() => std::fmt::Debug + Ord + PartialEq<()>);
// f32/f64 doesn't implement Eq
, so rustc will
// fail to compile next line if it you uncomment it
// assert_bound!(0.1 => Eq);
```