Time domain data

Update time domain data processing so that the distribution of log noise evidence follows the expected distribution.

This is mostly formalising where and how things are windowed and fixes some broken internal references.

I also bumped into this issue, https://git.ligo.org/Monash/tupak/issues/133.

tupak/core/utils.py

@@ -452,12 +452,13 @@ else:
     logger.debug('No $DISPLAY environment variable found, so importing \
                    matplotlib.pyplot with non-interactive "Agg" backend.')
     import matplotlib
+    import matplotlib.pyplot as plt
     non_gui_backends = matplotlib.rcsetup.non_interactive_bk
     for backend in non_gui_backends:
         try:
             logger.debug("Trying backend {}".format(backend))
             matplotlib.use(backend, warn=False)
-            matplotlib.pyplot.switch_backend(backend)
+            plt.switch_backend(backend)
             break
         except Exception as e:
             print(traceback.format_exc())