[API Proposal]: Add a new `CanonicalizeHostName` property on `LdapSessionOptions`

### Background and motivation

OpenLDAP offers the possibility to configure whether to perform reverse DNS lookups to canonicalize SASL host names.

This can be configured with the [SASL_NOCANON](https://www.openldap.org/software/man.cgi?query=ldap.conf) option of the LDAP configuration or the `LDAP_OPT_X_SASL_NOCANON` option of the API.

Configuring this option can be useful, for example to workaround misconfigured DNS PTR records, as explained in [ldapsearch command suddenly stopped working on my Mac](https://superuser.com/questions/1842687/ldapsearch-command-suddenly-stopped-working-on-my-mac/1935578#1935578) on Super User.

This option is unfortunately not exposed on the [LdapSessionOptions](https://learn.microsoft.com/en-us/dotnet/api/system.directoryservices.protocols.ldapsessionoptions) class.

### API Proposal

```csharp
namespace System.DirectoryServices.Protocols;

public class LdapSessionOptions
{
public bool CanonicalizeHostName { get; set; }
}
```

### API Usage

```csharp
using var connection = new LdapConnection(ldapHost);
connection.SessionOptions.CanonicalizeHostName = false;
```

### Alternative Designs

I can't think of an alternative design for exposing this new property.

Also note that the implementation would be straightforward:
```csharp
public bool CanonicalizeHostName
{
get => !GetBoolValueHelper(LdapOption.LDAP_OPT_X_SASL_NOCANON);
set => SetBoolValueHelper(LdapOption.LDAP_OPT_X_SASL_NOCANON, !value);
}
```

It would require moving the `GetBoolValueHelper` and `SetBoolValueHelper` from LdapSessionOptions.Linux.cs into LdapSessionOptions.cs and define the new `LDAP_OPT_X_SASL_NOCANON` enum value (0x610b).

### Risks

No risks are associated by introducing this new property. It's purely additional and without getting it or setting it nothing would happen.