feat(matter): adds window covering matter endpoint

Author: SuGlider

CMakeLists.txt

@@ -199,6 +199,7 @@ set(ARDUINO_LIBRARY_Matter_SRCS
   libraries/Matter/src/MatterEndpoints/MatterOccupancySensor.cpp
   libraries/Matter/src/MatterEndpoints/MatterOnOffPlugin.cpp
   libraries/Matter/src/MatterEndpoints/MatterThermostat.cpp
+  libraries/Matter/src/MatterEndpoints/MatterWindowCovering.cpp
   libraries/Matter/src/Matter.cpp
   libraries/Matter/src/MatterEndPoint.cpp)