WKTReader adds dimension in default mode

[FObermaier]

The WKTReader silently adds a dimension to 2D WKT when isOldJtsCoordinateSyntaxAllowed = true. This is the default.

Point pt = new WKTReader().read("POINT (10 10)");
if (pt.getCoordinateSequence().getDimension() == 3)
        System.out.println("dimension silently added");

The effect is the same for the other geometry types. Is this by design or do you care for a PR?