Add some demo pipelines

* new file: pipelines/full.yml: the full pipeline run
* new file: pipelines/resize_float.yml: just resize, to an x/y res
* new file: pipelines/resize_xy.yml: "rescale" by a floating point value
Bugfixes to resizing in ResultingImageWriter

* timestream/manipulate/pipecomponents.py: (ResultingImageWriter): Fix
  various bugs found in testing