Zeroconf

Features

- Optimize construction of outgoing dns records
([1182](https://github.com/python-zeroconf/python-zeroconf/pull/1182),
[`fc0341f`](https://github.com/python-zeroconf/python-zeroconf/commit/fc0341f281cdb71428c0f1cf90c12d34cbb4acae))

Features

- Reduce overhead to enumerate ip addresses in ServiceInfo
([1181](https://github.com/python-zeroconf/python-zeroconf/pull/1181),
[`6a85cbf`](https://github.com/python-zeroconf/python-zeroconf/commit/6a85cbf2b872cb0abd184c2dd728d9ae3eb8115c))

Bug Fixes

- Small internal typing cleanups
([1180](https://github.com/python-zeroconf/python-zeroconf/pull/1180),
[`f03e511`](https://github.com/python-zeroconf/python-zeroconf/commit/f03e511f7aae72c5ccd4f7514d89e168847bd7a2))

Bug Fixes

- Always answer QU questions when the exact same packet is received from different sources in
sequence ([1178](https://github.com/python-zeroconf/python-zeroconf/pull/1178),
[`74d7ba1`](https://github.com/python-zeroconf/python-zeroconf/commit/74d7ba1aeeae56be087ee8142ee6ca1219744baa))

If the exact same packet with a QU question is asked from two different sources in a 1s window we
end up ignoring the second one as a duplicate. We should still respond in this case because the
client wants a unicast response and the question may not be answered by the previous packet since
the response may not be multicast.

fix: include NSEC records in initial broadcast when registering a new service

This also revealed that we do not send NSEC records in the initial broadcast. This needed to be
fixed in this PR as well for everything to work as expected since all the tests would fail with 2
updates otherwise.

Features

- Speed up processing incoming records
([1179](https://github.com/python-zeroconf/python-zeroconf/pull/1179),
[`d919316`](https://github.com/python-zeroconf/python-zeroconf/commit/d9193160b05beeca3755e19fd377ba13fe37b071))

Features

- Improve dns cache performance
([1172](https://github.com/python-zeroconf/python-zeroconf/pull/1172),
[`bb496a1`](https://github.com/python-zeroconf/python-zeroconf/commit/bb496a1dd5fa3562c0412cb064d14639a542592e))

- Small speed up to fetch dns addresses from ServiceInfo
([1176](https://github.com/python-zeroconf/python-zeroconf/pull/1176),
[`4deaa6e`](https://github.com/python-zeroconf/python-zeroconf/commit/4deaa6ed7c9161db55bf16ec068ab7260bbd4976))

- Speed up the service registry
([1174](https://github.com/python-zeroconf/python-zeroconf/pull/1174),
[`360ceb2`](https://github.com/python-zeroconf/python-zeroconf/commit/360ceb2548c4c4974ff798aac43a6fff9803ea0e))

Features

- Improve performance of ServiceBrowser outgoing query scheduler
([1170](https://github.com/python-zeroconf/python-zeroconf/pull/1170),
[`963d022`](https://github.com/python-zeroconf/python-zeroconf/commit/963d022ef82b615540fa7521d164a98a6c6f5209))