Add maze.txt

Add title, link to testing-go-queues

Set start to ROUTE before looping through predecessors

It is more clear to start with a special case `steps = 1` than to end
with a special case `steps++`.

Spell don't correctly

Reword README.md, add LICENSE

Implement Solve() and rest of command-line options

Fix bad col assignment bug

With the range, col would be the column of the line of text, not of the
maze. Silly mistake.

Use col and cols as field names instead of column and columns

Rewrite Tile as a struct

This will be useful when implementing Solve().

Fix undefined in, out, err

Parse command-line flags, read input files

Render the maze

Remove empty line

Use idiomatic variable name (no _)

Add documentation

Remove old function

Add Maze type fundamentals

Count density of ones and zeroes

Implement mazegenerator

Ignore output binaries