Photoshop's remaining blend modes in its groups (12.7a); v1.2.2 kernels for 12.7b

tests/AdjustmentLayerTests.cpp

@@ -186,6 +186,10 @@ void AdjustmentLayerTests::adjustmentBlendAndSoftMaskPreserveCoverage()
     s.updateAdjustment(id, value);
     s.setLayerBlendMode(LayerBlendMode::multiply);
     QVERIFY((rendered(s) == std::vector<int>{0, 0, 0, 255, 0, 0, 0, 128, 0, 0, 0, 32, 0, 0, 0, 0}));
+    // Green over red adds to yellow; Swift adjusts as Normal.
+    s.setLayerBlendMode(LayerBlendMode::linearDodge);
+    QVERIFY((part(rendered(s), 0, 4) == std::vector<int>{255, 255, 0, 255}));
+    QCOMPARE(rendered(s)[7], 128);
     s.setLayerBlendMode(LayerBlendMode::normal);
     QImage gray(1, 1, QImage::Format_Grayscale8);
     gray.fill(128);