Commented Issue: Methods with matrix parameters are not shown in help page [1122]

Our team decided to use standard query parameters in URIs only for sorting and paging and other non filtering actions on resources. For filtering we want to use matrix parameters.
Since it is not guaranteed that query parameters are being cached, matrix parameters should be used where applicable. But when using matrix parameters the help page wont show these requests.

Example:

```
/// <summary>
/// Get customers
/// </summary>
/// <param name="name">Name of the customer.</param>
/// <param name="surname">Surname of the customer.</param>
/// <returns>Returns a list of customers.</returns>
[HttpGet("api/customers;name={name};surname={surname}")]
public IEnumerable<Customer> GetByFilter(string name, string surname)
{
...
}
```

Instead of:
```
/// <summary>
/// Get customers
/// </summary>
/// <param name="name">Name of the customer.</param>
/// <param name="surname">Surname of the customer.</param>
/// <returns>Returns a list of customers.</returns>
[HttpGet("api/customers?name={name?}&surname={surname?}")]
public IEnumerable<Customer> GetByFilter(string name, string surname)
{
...
}
```

Kind regards,
Andy
Comments: Yao - While we don't intend to support matrix URIs completely, it does seem that the first example should show up properly in the help page.