Correct bulk subnet-create JSON example

Add examples of bulk create responses
Move the examples of bulk create requests to separate files

Change-Id: Ia546b797b640b5827f75bf80237e1e62cac8b303
Closes-Bug: #1191694
Weight value in member operations is optional

    The "Weight" parameter in pool member operation are not mandatory.
    Change the Yes value in the requiered field to No
    This bug is dupped from the bug 1241004

    Bug: #1241004

Change-Id: Ideee971e8a4f234a115bda4b14cb9ad25637041b
Merge "Weight value in member operations is optional"
Merge "Correct bulk subnet-create JSON example"