Add support for containerised/core installs of Home Assistant

Could support be added for Home Assistant where it is running containerised or core. Perhaps with a focus on the containerised version given this is a very popular way to run HA on Docker supported devices. Synology and QNAP and various other NAS manufacturers support Docker out of the box therefore is a popular way to run it.

Addon implementation is generally not needed via HA when running Docker owing to being able to just run the containers directly via Docker.