Add `matches` function to all types structs

#### Feature

Currently there exist `FuncType::matches` and `ValType::matches`.

Add `matches` functions to:
- `ExternType`
- `GlobalType`
- `TableType`
- `TagType`

#### Benefit

Quickly checking if a type conforms to an interface.
Asking this in relation to [this wasmi pull request](https://github.com/wasmi-labs/wasmi/pull/1742) to know if there are any plans on implementing functions like this.

#### Implementation

I think it should be possible to compare all fields for either equality or to use the matches functions that are already written.

#### Alternatives

These functions do not have to be written in this crate. They can also be added by users of the library if necessary.