FILEIniSave
Save the current ini file Scol object to a defined saved path. By default,
this is the same than the loaded file.
Prototype :
fun [INIFile I] I
- INIFile : a ini file Scol object.
- I : a flag
- INI_APPEND : append the current content after the end of the defined file
- INI_OVERWRITE : overwrite the old file content.
Return : I 0 or nil if error