Implement edge weights

[DanielSeemaier]

It would be nice to have an option for edge weights based on the distance between adjacent vertices.

[lCavendishl]

Here are the remaining tasks for edge weights:

• Randomized edge weights are unfinished. Corresponding edges need to be sorted for binary search 
  

• Restructuring how coordinates are handled is necessary to ensure that all required coordinates are available later for weight calculation based on distance
  

• The weights need to be written into the output file