Added skeleton for console application
Added model objects for Segment and SevenSegmentGlyph
Implemented lexer for account entries
Created the parser for recognizing glyphs as valid digits.
Wired up input and output streams in launcher.
Finished with User Story 1: converting seven segment input to numbers.
Created calculator for account number checksums
Added notation for illegible and non-validating account numbers. Done
with User Story 2 and (mostly) 3.
Updated README with instructions on how to run the app
.gitignore .DS_Store files