EZVIZ-support for HP7 Intercom

Hi everyone!

This is my first contribution to the Home Assistant community. Like many of you, I was tired of Ezviz not providing a solution for the video feed issue, so I decided to investigate the feed myself.

Starting from the great work already done in Bobsilvio's repository, I’ve managed to find a way to get the live video working. I've created a fork to enable the streaming, and it’s been working fine on my setup for a few days now.

I’d love to get some feedback from the community to see if it works for everyone else too.

Here’s the link: :backhand_index_pointing_right: https://github.com/albrzmr/ezviz_hp7

Just a heads up: This is still a bit of a work in progress, so use it carefully and expect some bugs here and there.

Let me know if it works for you or if it breaks anything! Cheers.