Fix hit analysis and analysis enhancements

Addressing #41 (closed) #58 (closed) #98 (closed)

Solves bugs:

• Do not split events if raw data size per scan parameter id exceeds chunk size
• Do not silently kill python instance if chunk size is smaller than total number of raw data words per scan parameter
• Event is not aligned at BCID that can easily overflow and bit flip
• First event is event 0 and not 1

Includes enhancements:

• Add unit test with small chunk size
• Reduce RAM usage to < 1 Gb. Analysis speed not affected
• Event status bits that are set:
  • BCID not increasing properly
  • Trigger id not increasing by 1
  • Unkown word(s) occurred
• Slight speed up by defining expected chunk size
• Hits have a trigger tag
• Hits have an event status bit
• Event status plot: