Add some parser tests.
Remove unused parameter.
Add some type signatures to Parser.
Name telescope type.
Generalize type of desugarArgs.
Move Telescope type to separate module.
Move desugarArgs to Telescope module.
Use Telescope type in desugarArgs signature.
Rename desugarArgs to foldTelescope.
Rename args to telescope.
Add some more type signatures.
Rename argsOrArgGroup to telescopeOrArgGroup.
Merge pull request #109 from Toxaris/telescopes

Rename and bundle implementation of telescopes