NodesApi.updateNodeContent needs additional options

[eamell]

I understand that this is generated code, however the fact that NodesApi.updateNodeContent only supports byte[] is very limiting especially when dealing with large files or with jobs that process a lot of files. There needs to be support for at least one of the following options (or something similar):

• Channel
• InputStream
• File/Path

The implementation for such an option would be to ensure that the content is streamed to the server as part of the request rather than loading it into memory.