feat: 0.3.0 Clean namespace, KLS_Conf, KLS_Temp_Conf

[jgabaut]

• feat: cleaner namespace.
  • Prepends KLS_ to Region, Region_Type, Region_List, element, list_region, list_element.
• feat: change abort() to exit(EXIT_FAILURE)
• feat: add KLS_Conf, KLS_Temp_Conf
  • Drops global variables KLS_AUTOSET_REGIONS and KLS_AUTOSET_TEMP_REGIONS.
  • Introduces KLS_DEFAULT_CONF, to always initialise the conf structure on kls_new().
  • Add KLS_Conf_Fmt and KLS_Conf_Arg() for formatted output.
  • Adds KLS_Temp_Conf_Fmt and KLS_Temp_Conf_Arg() for formatted output.
• feat: add kls_set_conf(), kls_temp_set_conf().
  • By default, kls_temp_start() will setup the KLS_Temp_Conf according to the parent Koliseo conf fields.
• feat: add kls_new_conf()