Backported "get_ini_sections/section" functions from 4.0

Minor code edits.

artifacts/scripting/headers/sfall.h

@@ -284,6 +284,8 @@
 #define get_current_inven_size(obj)                             sfall_func1("get_current_inven_size", obj)
 #define get_cursor_mode                                         sfall_func0("get_cursor_mode")
 #define get_flags(obj)                                          sfall_func1("get_flags", obj)
+#define get_ini_section(file, sect)                             sfall_func2("get_ini_section", file, sect)
+#define get_ini_sections(file)                                  sfall_func1("get_ini_sections", file)
 #define get_interface_x(winType)                                sfall_func2("get_window_attribute", winType, 1)
 #define get_interface_y(winType)                                sfall_func2("get_window_attribute", winType, 2)
 #define get_inven_ap_cost                                       sfall_func0("get_inven_ap_cost")

artifacts/scripting/sfall function notes.txt

@@ -456,6 +456,13 @@ Some utility/math functions are available:
 > void sfall_func0("real_dude_obj")
 - returns the initial dude_obj after taking control of other critters in combat
 
+> array sfall_func1("get_ini_sections", string fileName)
+- returns an array of names of all sections in a given INI file
+
+> array sfall_func2("get_ini_section", string fileName, string section)
+- returns an associative array of keys and values for a given INI file and section
+- NOTE: all keys and their values will be of String type
+
 > int sfall_func0("car_gas_amount")
 - returns the current amount of fuel in player's car (between 0 and 80000)
 - to change fuel amount, use vanilla function: metarule(METARULE_GIVE_CAR_GAS, amount) - amount can be positive or negative