trigger

The following enhancements are implemented:

• implementation of TLU module in firmware (triggering possible now through TLU or HitOR)
• script for source scan (via HitOr) + external trigger scan (via TLU)
• scan which tunes the trigger data delay
• BDAQ converter: convert raw data into testbeam analysis format
• Hit table format changes:
  • Additional field: ext_trg_number
  • Field scan_param_id uint8 --> uint32
• eudaq external trigger scan to send data of an external trigger scan to euRunControl

Bug fixes:

• Analysis with chunks and external trigger numbers

After MERGE: latest basil version should be used due to changes for trigger data delay.