Add basic RGB leds script support

(see EdgeTX/edgetx#3909)

sdcard/bw128x64/SCRIPTS/RGBLED/blue.lua

@@ -0,0 +1,16 @@
+local function init()
+end
+
+local function run()
+  for i=0, LED_STRIP_LENGTH - 1, 1
+  do
+    setRGBLedColor(i, 0, 0, 50)
+  end
+  applyRGBLedColors()
+end
+
+local function background()
+  -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }

sdcard/bw128x64/SCRIPTS/RGBLED/green.lua

@@ -0,0 +1,16 @@
+local function init()
+end
+
+local function run()
+  for i=0, LED_STRIP_LENGTH - 1, 1
+  do
+    setRGBLedColor(i, 0, 50, 0)
+  end
+  applyRGBLedColors()
+end
+
+local function background()
+  -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }

sdcard/bw128x64/SCRIPTS/RGBLED/off.lua

@@ -0,0 +1,16 @@
+local function init()
+end
+
+local function run()
+  for i=0, LED_STRIP_LENGTH - 1, 1
+  do
+    setRGBLedColor(i, 0, 0, 0)
+  end
+  applyRGBLedColors()
+end
+
+local function background()
+  -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }

sdcard/bw128x64/SCRIPTS/RGBLED/police.lua

@@ -0,0 +1,26 @@
+local function init()
+    police_oldtime = getTime()
+    police_cycle = 0
+end
+
+local function run()
+  for i=0, LED_STRIP_LENGTH - 1, 1
+  do
+    if (i % 2 == police_cycle) then
+        setRGBLedColor(i, 0, 0, 50)
+    else
+        setRGBLedColor(i, 50, 0, 0)
+    end
+  end
+  if ((getTime() - police_oldtime) > 8) then
+    police_oldtime = getTime()
+    police_cycle = 1 - police_cycle
+  end
+  applyRGBLedColors()
+end
+
+local function background()
+  -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }

sdcard/bw128x64/SCRIPTS/RGBLED/red.lua

@@ -0,0 +1,16 @@
+local function init()
+end
+
+local function run()
+  for i=0, LED_STRIP_LENGTH - 1, 1
+  do
+    setRGBLedColor(i, 50, 0, 0)
+  end
+  applyRGBLedColors()
+end
+
+local function background()
+  -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }