IniFile :: createSection - Add new section
The function adds a new section with the name passed in sName to the ini-file. This automatically closes the previous section. The new section is added to the file. The function changes the currently selected section ( section() ).
Notes: 
In order to access hierarchical sub-sections, a section name hierarchy may be passed by separating section levels by dots for xml configuration files.
Return value:  Success ( bool  )
The value is true when the function was executed successfully. Otherwise the value is set to false .

