Ws2811 (#298)

* esp8266 and esp32

* Update keywords.txt

* classic platforms

src/internal/NeoArmMethod.h

@@ -766,6 +766,7 @@ typedef NeoArm400KbpsMethod NeoArmApa106Method;
 // Arm doesn't have alternatives methods yet, so only one to make the default
 typedef NeoArmWs2812xMethod NeoWs2813Method;
 typedef NeoArmWs2812xMethod NeoWs2812xMethod;
+typedef NeoArmWs2812xMethod NeoWs2811Method;
 typedef NeoArmSk6812Method NeoSk6812Method;
 typedef NeoArmSk6812Method NeoLc8812Method;
 typedef NeoArm800KbpsMethod NeoWs2812Method;