Added ZHA Philips Hue Smart Button

Adds Philips Hue Smart Button over ZHA.

Blueprint has been properly tested (I am actually using it at home after migrating all my Hue devices to ZHA).

Blueprint Checklist

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