Zeroconf

Fix

* Build failures with older cython 0.29 series ([1232](https://github.com/python-zeroconf/python-zeroconf/issues/1232)) ([`30c3ad9`](https://github.com/python-zeroconf/python-zeroconf/commit/30c3ad9d1bc6b589e1ca6675fea21907ebcd1ced))

Feature

* Optimize processing of records in RecordUpdateListener subclasses ([1231](https://github.com/python-zeroconf/python-zeroconf/issues/1231)) ([`3e89294`](https://github.com/python-zeroconf/python-zeroconf/commit/3e89294ea0ecee1122e1c1ffdc78925add8ca40e))

Feature

* Speed up the service registry with a cython pxd ([1226](https://github.com/python-zeroconf/python-zeroconf/issues/1226)) ([`47d3c7a`](https://github.com/python-zeroconf/python-zeroconf/commit/47d3c7ad4bc5f2247631c3ad5e6b6156d45a0a4e))
* Optimizing sending answers to questions ([1227](https://github.com/python-zeroconf/python-zeroconf/issues/1227)) ([`cd7b56b`](https://github.com/python-zeroconf/python-zeroconf/commit/cd7b56b2aa0c8ee429da430e9a36abd515512011))

Feature

* Optimize unpacking properties in ServiceInfo ([1225](https://github.com/python-zeroconf/python-zeroconf/issues/1225)) ([`1492e41`](https://github.com/python-zeroconf/python-zeroconf/commit/1492e41b3d5cba5598cc9dd6bd2bc7d238f13555))

Feature

* Refactor notify implementation to reduce overhead of adding and removing listeners ([1224](https://github.com/python-zeroconf/python-zeroconf/issues/1224)) ([`ceb92cf`](https://github.com/python-zeroconf/python-zeroconf/commit/ceb92cfe42d885dbb38cee7aaeebf685d97627a9))

Feature

* Add cython pxd file for _listener.py to improve incoming message processing performance ([1221](https://github.com/python-zeroconf/python-zeroconf/issues/1221)) ([`f459856`](https://github.com/python-zeroconf/python-zeroconf/commit/f459856a0a61b8afa8a541926d7e15d51f8e4aea))