Add Omega-vs-time and f_lower_at_1MSUN check
From https://dcc.ligo.org/G1700336 (Presented on NR20170309)
In SXS waveforms we see sometimes that Omega-vs-time’s lowest Omega value is not the same value as f_lower_at_1MSUN (after fixing units). A small discrepancy can be dealt with, but the sanity checker should catch a large difference