Changes
- Set up project based on templates currently in cubi-tk
- Added automated validation testing (2, 12)
- Added new template *mass_cytometry* (4)
- Added new template *somatic* (23)
- Removed template *stem_cell_core* (8)
- Removed templates *tumor_normal_dna* and *tumor_normal_triplets* (23)
- Changed `Library Name` headers to `Extract Name` for ISA model compatibility (3)
- Converted 'internal' variables to private (17)
- Fixed broken templates (5, 6, 7, 19)