Update algorithms.json

Added OJ_GU

Author: oscarjalnefjord

tests/IVIMmodels/unit_tests/algorithms.json

@@ -146,5 +146,19 @@
                 "Dp": 1e-1
             }
         }
+    },
+    "OJ_GU_seg": {
+        "tolerances": {
+            "rtol": {
+                "f": 5,
+                "D": 5,
+                "Dp": 25
+            },
+            "atol": {
+                "f": 1e-2,
+                "D": 1e-2,
+                "Dp": 1e-1
+            }
+        }
     }
-}
+}