Generator FSR merging
- Add three qmtests for to make sure the generator FSR merging works in Moore
- run L0App on the input, propagating the FSRs but not merging them
- run Moore with the merging enabled (only Hlt1 to save CPU)
- run GenFSRLog on the output and compare with a reference
- Add MergeGenFSR option to L0App allow merging of generator FSRs and add tests
- run L0App with the merging enabled
- run GenFSRLog on the output and compare with a reference
- See LHCBGAUSS-263