Merge pull request #1254 from joto/prep-lua-5.4

CMake config: Also look for the recently released Lua 5.4

Author: pnorman

cmake/FindLua.cmake

@@ -52,7 +52,7 @@ unset(_lua_library_names)
 
 # this is a function only to have all the variables inside go away automatically
 function(set_lua_version_vars)
-    set(LUA_VERSIONS5 5.3 5.2 5.1 5.0)
+    set(LUA_VERSIONS5 5.4 5.3 5.2 5.1 5.0)
 
     if (Lua_FIND_VERSION_EXACT)
         if (Lua_FIND_VERSION_COUNT GREATER 1)