Add Uint type for screen frame transfer

[kimbring2]

Hello,

Thank you for sharing the code. It works well.

I find it is too slow to send the image frame as an observation value by using the Float, Int type. Therefore, I add the Uint type to send the PoolVector as an observation value.

I add my own environment and README file under the Tutorials/DogdeCreepTut folder.

Thank you

[lupoglaz]

Hi, I am sorry, I just saw this pull request. I will try to merge within 9Jan - 15Jan.

[kimbring2]

@lupoglaz Hello, thank you for checking my pull request. Please merge at your convenience (:

I have learned a lot from your repository. Thank you again for sharing the awesome project.