Elitescreens: Update supported brands/models (#1375)

* Note support for Lumene Screen's Embassy models.
* List known commands.

Ref: #1373 (comment)

src/ir_EliteScreens.cpp

@@ -11,12 +11,20 @@
 //   Brand: Elite Screens,  Model: Home2 / Home3 series
 //   Brand: Elite Screens,  Model: CineTension2 / CineTension3 series
 //   Brand: Elite Screens,  Model: ZSP-IR-B / ZSP-IR-W remote
+//   Brand: Lumene Screens,  Model: Embassy
 
 // Known Elite Screens commands:
 // 0xFEA3387 (STOP)
 // 0xFDA2256 (UP)
 // 0xFBA1136 (DOWN)
 
+// Known Lumene Screens commands:
+// 0xFDE3322 (STOP)
+// 0xFEE2221 (UP)
+// 0xFBE11E0 (DOWN)
+// 0xF7E2EBD (STEP UP)
+// 0xEFE1E2C (STEP DOWN)
+
 #include "IRrecv.h"
 #include "IRsend.h"
 #include "IRutils.h"