Wrap main display functionality into a fn
Move all files into a less pretentious namespace
Remove unused destructuring
Add function for creating images as run-length encodings
Add a function for accumulating 1's in a region
Sort of partially implement dilate
Sort of another attempt to use sparse representation
Implement some generic 2d manipulation functions
Another attempt at implementing dilate
Remove the failing image type tests
Add tests for get2d
Add some tests for assoc2d single update
Add a test for assoc2d multiple update
Add some tests for update2d with just a function
Add some tests for update2d with extra arguments