Adding Psyduck lv1

Psyduck logic is almost completed it just needs a couple variables from
matchSate and it should work.
Needs:
String hand is our hand

int actionNumber is the number of actions we have completed this round
(starts at 0)

int[] cards is the int array of all cards ours + table

int potSize = pot size in the current hand (i.e. num raises)

int stage is where we are in the round 0 = preflop, 1= postflop, 2 =
turn, 3 = river
//oppDecision is the opponent's decision