Printing, unfinished cause it doesn't work yet.
Semantics
Mad they said! It could not be done they said! I proved them wrong!

Changelog:
 1. Generic LinkedList:
  - By the power invested in me by the Holy Sanctity: the POINTER, generic
    lists are now possible.
  - It's so generical that every Node can have a different value type.
  - This can be overriden of course by type checking before adding.
 2. intern_func is now _list_func.
 3. print(...); = printf(...); + \n
Added environment headers for cross-platform compatibility.

Changelog:
 1. Environment:
  - If the user is using Windows, it includes windows.h and does some
    awful coding with awful Windows.
  - Else, Hammertime supposes the user is using a UNIX machine.
  - Clearing the screen now has to be used with the macro CLEAR for
    cross-plaform compatibility.
 2. Screen Size:
  - It now calculates the console's size according to the user's OS.
Fixed printing

Point being painted on the screen.