This commit switches from a strict inequality for the upper bound on
the mobile displacing oil saturation in the three-point scaling
method to allowing equality as well. Some recent experience
demonstrates that equality is okay in this case.
This commit introduces consistency checks for the scaled displacing
saturation in the three point horizontal scaling method
(SCALECRS=YES). These plug into the framework introduced in commit
c3939c544 (PR #5438). We implement the following two checks
- SGCR < 1-SOGCR-SWL < SGU
- SWCR < 1-SOWCR-SGL < SWU
which collectively guarantee a mobile displacing oil saturation in
the two phase gas/oil and oil/water systems.