build: add the SIBO SDK

code/SIBOSDK/include/pulldown.ing

@@ -0,0 +1,19 @@
+; Generated by Ctran from pulldown.cl
+PULLDOWN_ING equ 1
+IFNDEF LISTBOX_ING
+ INCLUDE ..\inc\LISTBOX.ING
+ENDIF
+; Class Numbers
+C_PULLDOWN equ 8
+; Method Numbers
+; Types for pulldown
+MENU_ITEM struc
+MENU_ITEMCom_id  db ? 
+MENU_ITEMMn_txt db (1) * 1 dup (?)
+MENU_ITEM ends
+; Property of pulldown
+PR_PULLDOWN struc
+PulldownRoot PRS_ROOT <>
+PulldownWin PRS_WIN <>
+PulldownListbox PRS_LISTBOX <>
+PR_PULLDOWN ends