BandQ: spruce lines with neutrals
- Releasing BandQ sprucing
and HLT2 linesrelated to neutrals and downstream tracks. - Moving all imports to the beginning of the file.
Changing line construction function from HltLine to Hlt2LineRemoving an unused variable
All changes made to HLT2 are moved to another MR(!2771 (merged)) to make this MR only relevant to Sprucing.
Edited by Alessandro Bertolin