Incorrect Relate value due to noding

[dr-jts]

This issue is a mirror of GEOS issue 572.

A: LINESTRING (1 0, 0 2, 0 0, 2 2)
B: LINESTRING (0 0, 2 2)

A.relate(B) 
Expected = 101F00FF2
Actual   = 001F001F2

A.covers(B)
Expected: TRUE
Actual: FALSE

(Expected value can be determined by using A= LINESTRING (2 0, 0 2, 0 0, 2 2) )

The issue is caused by the fact that the topology is evaluated after the inputs have been self-noded. Input A has a node introduced, but input B does not. The new node causes the segments of A to drift so that they are no longer coincident with B (as they obviously should be). Thus the I(A)/I(B) relationship is computed as F, when it should be 2.

It's possible that #270 would fix this. Or, perhaps a new approach to predicate evaluation which can determine topology without introducing nodes is feasible.

This is possibly related to #270.