#31 Dragging in ObjectViewer partially handle spaces

[Drzewiecki T.]

CREATE TABLE test (
"hello world" NUMBER NULL
);

In previous version (before fix of R#1097646) dragging
column "hello world" into editor caused paste of:
hello

After fix of R#1097646 it will be
"hello world"

But recognition ending of the column isn't 100% proper
- we search three spaces (distance between column name
and type - watch SELECT in 'p_con_col_sttm'). It should
be something different.