ENH: adding option for filters to turn on debugging

This option print out the ITK filter before execution displaying the
parameters and ITK types which will be used.

Change-Id: I65a51e3bb3d6888b8ba8126fd1c968c829d63491
Adding tests for new Debug class property

Change-Id: I41c4f5a20f12834baebc0484ba2b75668ebb8fce
Adding DebugOn in generated tests

Change-Id: I14d36daa4cf53fdce96a527397a29f19c256e364
Adding Debug option to manually written filters

Change-Id: I43d4f5b2c849bd5b676bb0ccaae95613bea9464d
Merge topic 'AddDebugFilterOption' into next

f82c7ee Adding Debug option to manually written filters
227600b Adding DebugOn in generated tests
6106da3 Adding tests for new Debug class property
326964d ENH: adding option for filters to turn on debugging