Creates an InfoDiscoBt (aka Binary Content) in the content graph.
This JAX-RS method is available under the path "content". It requires
a multipart/form-data with two fields: "content", which is the content of the
InfoDiscobit to be created and "uri" which is the uri of the new
Returns a Created (201) response, if the info bit was successfully
uploaded. Returns Bad Request (400) response, if required form fields are
missing. Returns a Conflict (409) response, if at the specified URI a
resource already exists.