1. Now the face-up/face-down position of cards in deck is shown by text
color.
2. Effects in POSITION_HINT will not display the location of cards.

Now a player can add/remove 2^16-1=65535 counters at a time.

set window icon

in single mode and replay mode

fix ShowCancelOrFinishButton and should_show_tip

we should guide users to use right click

because the status of these buttons can be changed by mouse click

add button for cancel or finish selecting

update strings of EP16