*** Memory game for LPC2104 Color LCD Game ***

Short description:
- 2 Players play against each other: player1 (P1, red color) and player2 (P2, blue color)
- there are 21 pairs of cards (same image), randomly placed on the field
- all cards are hidden (grey fields), each player has to find card pairs
- player has to open 2 cards: select with up/down/left/right keys, then press Center key
- if the 2 cards match, player gets a score point and may continue to play
- if the 2 cards do not match, they are hidden again and the next player continues
- after each 2 cards, one of the up/down/left/right keys has to be pressed to continue
- status line: left:   score of player1
               middle: shows, which player has to open cards
               right:  score of player2
