[PLAT-3685] : test and correction interest indexed bonds.
Merge after a git pull.
[PLAT-3992] : conversion node have been check.
[PLAT-4205] ; first guess for the root finder in the inflation curve calibration have been changed.
[PLAT-4206] and [PLAT-4209] : the coorection for the ParSpread and the ParSpread CurveSensitivity have benn done.