Add support for Senic Friends of Hue Switch

[misberner]

This commit adds support for the Senic Friends of Hue switches for Philips Hue.

The events are identical to the regular Hue wall switch, so this is mostly for the convenience of not having to guess how buttons map between the two. Therefore, most of the blueprint has been copied from the regular Hue wall switch.

The image is cropped to the device, so there is no background (transparent or otherwise). LMK if you'd prefer to make the image slightly larger to pad the switch with a transparent area.

Blueprint Checklist

• You viewed the README and conformed to the naming conventions
• You ordered the actions as stated in the README action order
• All filenames are lowercase and uses '-' for spaces and not '_' while using {service-name}-{switch-name-or-type}.yaml format
• Images are png
• Image backgrounds are transparent and is cropped to the device boundries
• Images has a maximum width of 800px and maximum height of 500px
• There are no missing buttons or actions
• Your integration/service is running on the latest version
• You have tested your blueprints and made sure each button and action works

[Sian-Lee-SA]

Everything looks good, cheers!