Implemented the Intergalactic Transmission exercise

[rmonnet]

No description provided.

[glennj]

I like to put helper functions up top so that students know they don't need to implement them.

Otherwise OK

[rmonnet]

I understand your point of view but I think it is a matter of taste. I like what Bob Martin says about arranging the functions in a file:

"To say it another way, we want the code to read like a top-down narrative. We want every function to be followed by those at the next level of abstraction so that we can read the program, descending one level of detail at a time..."

I didn't think the students had access to the example.odin file unless they look into the github repository.

[glennj]

I didn't think the students had access to the example.odin file unless they look into the github repository.

I commented in the wrong place: I was talking about the helper in the test file.

[rmonnet]

Ok, I'll move then to the top. Will push and merge in a separate PR since it is just moving things around.