added the type: COSMOS _GenerateFrom option to allow noise_pad to be created as a _BaseCorrelatedNoise via a dict of input parameters to the getCOSMOSNoise function.  Need to flag a query with Mike, however
(#389)
tidied up / completed docstrings for demo6.yaml and both demo11 config scripts
(#389)
added the use of COSMOS noise padding to the JSON config files, and added a little more documentation in both demo6 formats
(#389)