* Moved ConvertFormToJson to the context middleware (it isn't used anywhere else)
* Updated ConvertFormToJson signature to receive schema so that it could be used to coerce the type
* Updated ConvertFormToJson so that arrays are handled correctly
* Add ConvertStringToType utility function that could be used to convert OpenAPI data type to golang type
* Refactored convertProperties so that it uses the new ConvertStringToType utility function so that conversions are consistent. It also reduced the lines of code
* Fixed the parameter reference in the README.md so that it's correct

* Refactored form data parsing so that the same code could be used for both application/x-www-form-urlencoded and multipart/form-data

* In the getter functions title cased the property name (this was being done for string only)