Update de_web_plugin_private.h
Update de_web_plugin_private.h

Add Samsung SmartThings manufaturer code
https://github.com/dresden-elektronik/deconz-rest-plugin/issues/993
https://github.com/dresden-elektronik/deconz-rest-plugin/issues/946
dresden-elektronik/deconz-rest-plugin,dresden-elektronik/deconz-rest-plugin,dresden-elektronik/deconz-rest-plugin,dresden-elektronik/deconz-rest-plugin,dresden-elektronik/deconz-rest-plugin