Adding freight charges components

Mohammed/Freight Charges/Insert for Freigth charges

+-- Adding charge_code__add in obj_itemhange to view its descr
+Insert into obj_itemchange (OBJ_NAME,FORM_NO,FIELD_NAME,MANDATORY,EXEC_AT,JS_ARG) values ('frt_chgs_table','1  ','charge_code__add',null,null,null);