Seed ITKNew fix #2
This MR addresses some feature of the ITKNew seeder implementation previously introduced leading to a significantly increased amount of pixel seeds being produced, leading to a sizeable slow down in the track finding. The main fix relates to a vector clearing introduced here
In the debugging process, some difference related to the use of a common phi-binning and connection neighbour maps for strips and pixels was also made clear and is updated in this new version.