Start doing python multi-module stuff properly

Dependencies

• [2] X5U7KRUI Parse some of the data into tensors
• [3] ROQCAPZJ Begin function for showing the map (for now just opens SDL window)

Change contents

• file addition: __main__.py (----------)
  [2.6]
  + import simsave

  + import drawmap

  +
• file addition: .ignore (----------)
  [2.6]
  + __pycache__