bindbc-lua :: Return tables from D

[russhy]

bindbc-lua expect the function to be  nothrow


This should work:

```D
import std.stdio : writeln;
import std.conv : to;
import bindbc.lua;

void main()
{
	lua_State* L = luaL_newstate();
	luaL_openlibs(L);
	lua_register(L, "funcD", &test);
	string str = "x = funcD()";
	luaL_loadbuffer(L, str.ptr, str.length, "line");

	int error = lua_pcall(L, 0, 0, 0);
	if (error != 0)
		writeln(lua_tostring(L, -1).to!string);
}

nothrow int test(lua_State* L)
{
	lua_newtable(L);
	lua_pushstring(L, "0");
	lua_pushstring(L, "test_data");
	lua_settable(L, -3);
	return 1;
}

```