Create DQN algorithm

[miroesli]

• consider implementing with openai's battlesnake env that amazon created. A tutorial for using the environment can be found in the following links:
  • awslabs-battlesnake-ai repo
  • creating your own environment
  • using dqn with an environment
• compare performances with existing environment and also compare algorithm performance with alphazero

[miroesli]

Another helpful resource with an already implemented dqn snake which has similar parsing structure as our method.