Improvements to the new syntax-tree output routines: Omit the "END SELECT"

mark and instead terminate the graph at the last item.  Increase the maximum
tree depth to 100.

FossilOrigin-Name: 5ce05757aac80b99c3b2141cd301809f8e28e661

src/sqliteInt.h

@@ -2936,7 +2936,7 @@ struct With {
 */
 struct TreeView {
   int iLevel;             /* Which level of the tree we are on */
-  u64 mLine;              /* Mask of continuation lines to be drawn */
+  u8  bLine[100];         /* Draw vertical in column i if bLine[i] is true */
 };
 #endif /* SQLITE_DEBUG */