QtJenny doesn't handle Java NaN value correctly

Generating cpp header from Android Java View class that contains a default value of NaN, for example Android View class: https://developer.android.com/reference/android/view/View#:~:text=final%20float%20REQUESTED_FRAME_RATE_CATEGORY_DEFAULT-,Constant%20Value,-%3A%20NaN

Creates a semantic issue : "use of undeclared identifier 'NaN'" on the cpp header file.