[ck2cti] Keep full precision of NASA 9-coefficient thermo data
[ck2cti] Keep full precision of NASA 9-coefficient thermo data

The 9-coefficient format keeps 10 digits for each coefficient, compared to 9 for
the 7-coefficient format.

Heathckliff/cantera,imitrichev/cantera,imitrichev/cantera,Heathckliff/cantera,imitrichev/cantera,Heathckliff/cantera,imitrichev/cantera,imitrichev/cantera,Heathckliff/cantera,Heathckliff/cantera,Heathckliff/cantera,imitrichev/cantera