Added more features

Hi Guy

I would like to add more functions to Nuxeo SDK

- requestParent
- move document
- requestACL

Could you please check it.

Thank you
Could you change the message signature to something like: 
`- (NUXAutomationRequest *)move:(NSString *)documentSrc toTargetDocument:(NSString *)targetDocument;`

I think it's more expicit than "documentDes" and it's refer to the Operation parameter name.
Thanks