No need to check for con apps due to custom list construction
custom list deconstruction
Add in support for tuples, parsing, and printing
printing cons app (arity 2) branches
parsing of cons patterns
Parsing and printing of list branches of size 0 or 1
Merge pull request #3 from michaeldever/master

Remove outdated code, support for 2-tuples (printing and parsing) and cons branches (printing and parsing)