WKTReader silently adds dimensions when setIsOldJtsCoordinateSyntaxAllowed is true

[chenhh021]

As the title says, WKTReader silently adds dimension.

For example, it will create coordinate sequence 10 10 NaN after load POINT (10, 10). The following test can reproduce this behavior.

public void testDimensionConsistence() throws Exception {
    //test 2-d point with XY coordinate
    CoordinateSequence seq1 = createSequence(Ordinate.createXY(), new double[] {10, 10});
    Point pt1 = (Point)readerXYOld.read("POINT (10 10)");
    assertTrue(isEqual(seq1, pt1.getCoordinateSequence()));
}

Is it designed to behave this way?

I could fix the dimension change alone. But a thorough fix may need some more time, as there may need some conversion for mixed use of 2-d and 3-d coordinates. At present such conversion is useless as WKTReader always extend 2-d coordinates to 3-d.