make connection between hit generator and front end chip working
(not functional yet)
first running version of hit_generator + test
This includes the first running version of the hit_generator and the
testbench for it.
remove FE_DataFormat
change hit_generator output to sc_fifo_out
The output of hit_generator was changed to sc_fifo_out to allow to send
multiple hits to one front end module in one time step.
correct time of LHC clock