Add vendor string to RGBController API and update all controllers with vendor information, add vendor to device information page

Controllers/LogitechController/RGBController_LogitechGPowerPlay.cpp

@@ -14,6 +14,7 @@ RGBController_LogitechGPowerPlay::RGBController_LogitechGPowerPlay(LogitechGPowe
     logitech = logitech_ptr;
 
     name        = "Logitech G PowerPlay Wireless Charging System";
+    vendor      = "Logitech";
     type        = DEVICE_TYPE_MOUSEMAT;
     description = "Logitech G PowerPlay Wireless Charging System";