feat(lua): Port of NodeMCU Lua53 read-only tables (#2994)

* chore(lua): revert useless c light function change

This change was part of the eLua LTR patches (based on 5.1), whereby this feature was already integrated in Lua 5.2.

* feat(lua): port of NodeMCU Lua53 read-only tables

# Conflicts:
#	radio/src/lua/CMakeLists.txt
#	radio/src/lua/api_general.cpp

* fix(nv14): missing SDRAM definition

* fix: l_mathop

* fix: use float functions in drawPower()

* fix: ltable resize

* fix: correct name is "bit32"

* fix: first Lua context must be closed last

As the lookup cache is attached to that one

* Revert to Lua using double

* Ensure byte-code compatibility

* Fix possible compatibility issue with `lua_typename`/`luaL_typename`

* Fix Bitmap symbol table

* Re-add table lib for COLORLCD

radio/src/lua/lua_api.h

@@ -31,7 +31,6 @@ extern "C" {
   #include <lua.h>
   #include <lauxlib.h>
   #include <lualib.h>
-  #include <lrotable.h>
   #include <lgc.h>
 }
 
@@ -62,7 +61,31 @@ extern lua_State * lsScripts;
 extern bool luaLcdAllowed;
 
 #if defined(COLORLCD)
-extern lua_State * lsWidgets;
+//
+// Obsoleted definitions:
+//  -> please check against libopenui_defines.h for conflicts
+//  -> here we use the 4 most significant bits for our flags (32 bit unsigned)
+//
+// INVERS & BLINK are used in most scripts, let's offer a compatibility mode.
+//
+#undef INVERS
+#undef BLINK
+
+#define INVERS     0x01u
+#define BLINK    0x1000u
+#define RGB_FLAG 0x8000u
+
+extern bool luaLcdAllowed;
+
+class BitmapBuffer;
+extern BitmapBuffer* luaLcdBuffer;
+
+class Widget;
+extern Widget* runningFS;
+
+LcdFlags flagsRGB(LcdFlags flags);
+
+extern lua_State* lsWidgets;
 extern uint32_t luaExtraMemoryUsage;
 void luaInitThemesAndWidgets();
 #endif