allows menus + submenus + context menus all with simple tables
menu_t which is a table of strings
func_t which are the corresponding functions to go with those strings
see lua_scripts/submenu_demo.lua
Change-Id: I907b74b4abef0ecbe49f181d0ced6e6d20e94de5
add stylized lines to lua
the exported do_menu has a severe limitation of 64 items
it also requires double the memory
put_line is the way rockbox builds menus
update printtable
user config from core -- done
code cleanup
fixed for 1-bit screens
changed button behavior
fixed for 2-bit screens
Change-Id: I4de55e42685aa1d2f53a33bc8e980827864e810b