Add setLights shadow block

libs/core/_locales/core-jsdoc-strings.json

@@ -20,6 +20,7 @@
   "input.remoteTopRight": "Remote top-right button.",
   "output.createBuffer": "Create a new zero-initialized buffer.",
   "output.createBuffer|param|size": "number of bytes in the buffer",
+  "output.getPattern": "Pattern block.",
   "output.setLights": "Set lights.",
   "screen.clear": "Clear screen and reset font to normal.",
   "screen.doubleIcon": "Double size of an icon.",

libs/core/_locales/core-strings.json

@@ -16,7 +16,8 @@
   "input.remoteTopLeft|block": "remote top-left",
   "input.remoteTopRight|block": "remote top-right",
   "input|block": "input",
-  "output.setLights|block": "set lights %pattern",
+  "output.getPattern|block": "%pattern",
+  "output.setLights|block": "set lights %pattern=led_pattern",
   "output|block": "output",
   "screen|block": "screen",
   "serial|block": "serial",