Deprecate RC module (#3137)

Author: HHHartmann

app/modules/rc.c

@@ -33,6 +33,10 @@ static int ICACHE_FLASH_ATTR rc_send(lua_State* L) {
   NODE_ERR("Protocol:%d\n",Protocol);
   NODE_ERR("repeat:%d\n",repeat);
   NODE_ERR("send:");
+
+  platform_print_deprecation_note("rc",
+    "in the next release. Use rfswitch module instead.");
+  
   int c,k,nRepeat;
   bits = bits-1;
   for (c = bits; c >= 0; c--)

docs/modules/rc.md

@@ -8,6 +8,10 @@ Superseded by **[rfswitch](./rfswitch.md)** module which have same functionality
 
 For more detailed description see [rfswitch module documentation](./rfswitch.md).
 
+!!! caution
+
+    This module is deprecated and will be removed in favor of the **[rfswitch](./rfswitch.md)** module.
+
 ## rc.send()
 Sends series of impulses