Basic import support

[riandrake]

Very high stress on "basic". Essentially all I would need to get this working is the ability to say that this statement:

import constants

just takes constants.py and pastes it at the top of my script.

There's a few cases where I would like to split some functionality that I keep re-writing into utility files that I can reuse. For example:

Constants:

• Display resolution
• Favourite color values

Functions:

• Reusable math calculations
• Render utilities to draw arrows, symbols, numbers, etc