fix(TransfoParam): issue with Cemaneige models

- Missing item "IsHyst" in `RunOptions$FeatFUN_MOD` causes crash

Regression after refactoring in #111

R/CreateRunOptions.R

@@ -34,7 +34,7 @@ CreateRunOptions <- function(FUN_MOD, InputsModel,
   }
   if ("CemaNeige" %in% FeatFUN_MOD$Class) {
     FeatFUN_MOD$IsHyst <- IsHyst
-    if (isHyst) {
+    if (IsHyst) {
       ObjectClass <- c(ObjectClass, "hysteresis")
       FeatFUN_MOD$NbParam <- FeatFUN_MOD$NbParam + 2
     }