Possible attack generation done in the Pokemon class

[aturfah]

Right now the BasicPokemonAgent goes and generates the possible moves that it could do. This should be handled at the Pokemon level, to make accounting for status conditions/item effects more simple.

Implementation details

• pokemon_helpers\pokemon.py - Need to add function for generate_moves() that returns list of possible tuples (Attack, NUMBER), as well as a flag for if the Pokemon can switch
• agent\basic_planning_pokemon_agent.py - generate_possibilities needs to be updated to make use of generate_moves()
• agent\basic_pokemon_agent.py - Need to update make_move to make use of generate_moves()

Test cases

• Test case 1, expected output
• Test case 2, expected output

[aturfah]

Addressed in #155