Add some missing reserved TLDs

It looks like the [following TLDs](https://www.ietf.org/archive/id/draft-chapin-rfc2606bis-00.html#new) (commonly used in local network hosts) are not in the list of TLDs (`.tld_set_snapshot`):
```
.local
.localdomain
.domain
.lan
.home
.corp
```
Edit: I just noticed the `extra_suffixes` kwarg in the `TLDExtract` class, so this may not be needed actually.
Feel free to close this issue if you think the above TLDs shouldn't be considered by default.

Inspect the TLD list in .tld_set_snapshot and the TLDExtract extra_suffixes kwarg. First determine whether these reserved suffixes should be included by default or remain opt-in; done means the issue's intended policy is implemented or the issue is closed with that decision documented.

Written by the indexing model from the issue text.