build: add the SIBO SDK

code/SIBOSDK/oopdemo/prndir.cat

@@ -0,0 +1,21 @@
+IMAGE prndir
+
+EXTERNAL olib
+
+INCLUDE varray.g
+INCLUDE p_file.h
+
+
+CLASS dirlist vaxvar
+Directory list
+    {
+    REPLACE va_test         sort by various criteria
+    TYPES
+        {
+        typedef struct
+            {
+            P_INFO info;
+            TEXT name[P_FNAMESIZE];
+            } DIRLIST_ITEM;
+        }
+    }