Adds new integration [QNimbus/haefele-connect-mesh]

[QNimbus]

Checklist

• I've read the publishing documentation.
• I've added the HACS action to my repository.
• (For integrations only) I've added the hassfest action to my repository.
• The actions are passing without any disabled checks in my repository.
• I've added a link to the action run on my repository below in the links section.
• I've created a new release of the repository after the validation actions were run successfully.

Links

Link to current release: Häfele Connect Mesh integration v1.0.6
Link to successful HACS action (without the ignore key): Validate HACS action run
Link to successful hassfest action (if integration): Hassfest action run