Create request

Create a request.

To create a request there are some prereqisites and optional attributes.

1. A request form is needed to create a request. This is defined as the formRef in the request. It can be queried via the Request Form API.
2. A request can include DocCenter and WorkSpace content. This content is held in the contentRef attribute. It's data can be queried via their respective APIs.
3. A request will also need to include custom properties which will contain the values inputted via the request form.
4. A request can include Library content. This content is stored in the associations attribute. It's data can be queried via the Library API.