Deletes Converters.cs

This file belongs in an app not in the wrapper
Fixes a small typo in the class name
Fixes a typo and adds a comment

… about the use of the price property
Cleans up usings
Renames a file from Types to ProductTypes
Fixes a the consignment properties

The should be no properties of type object. They are all strings which is not correct either.
Adds GET methods for Consignments and StockMovements
Adds sublime stuff to gitignore
Adds more method tests
Rebuilds the csproj file