Minor updates to Kernel/PartProp (@ibelyaev)

Cherry-picked from !1400 (merged) on run2-patches

• increase a bit precision for mass/lifeitme printouts
• allow specify negative values for lifetime (being intepreted as width in GeV). This is veyr useful for redefinition of the particle properties, and prevents bugs
• print all redefined properties
• add new qmtest
• regenerate reference file

• [2018-07-15 00:09] Validation started with lhcb-lcg-dev4#586
• [2018-07-15 00:10] Validation started with lhcb-head#1919
• [2018-07-15 00:10] Validation started with lhcb-gaudi-head#1931
• [2018-07-15 00:11] Validation started with lhcb-lcg-dev3#586
• [2018-07-15 00:13] Validation started with lhcb-tdr-test#215

merged

mentioned in commit 98e854da