the quantum matrix codes where not being initialized or/and called
so no feature of the quantum firmware could be used. These codes have
been added and now we can enjoy the quantum firmware goodness.
Since we can't read the real_mods and oneshot_mods static variable
directly within the update_user_visualizer_state
function (Threading and serial link). We are know storing the mods
states in the visualizer_keyboard_status_t structure. We can now
display the status of the modifier keys on the LCD display.