Added symbol drawing and symbol pools

got the game to a point that it can generate a list of symbols to draw based on the rarity of a fish, with higher rarities including more symbol pools, and if you draw the symbol sequence without taking more than 2 seconds for each symbol you catch the fish

For example: a rarity 3 fish gets a list of 3 symbols you have to draw, with the symbols pulled from the pools for rarity 3 fish and below

now I just have to train the symbol recognition algorithm, make a ton of fish species, and add a lot of polish

Feature will be clunky in its implementation here because I have no graphics to illustrate what the symbol name is supposed to mean