Add test_util_o2sat(self) and test_util_convert_to_mll(self)
Add test_util_o2sat(self) and test_util_convert_to_mll(self)

MBARIMike/biofloat,biofloat/biofloat,MBARIMike/oxyfloat,MBARIMike/oxyfloat,MBARIMike/biofloat,biofloat/biofloat