Merge pull request #2103 from stefoss23/add_keywords_M1

Added more keywords beginning with M.

opm/simulators/flow/MissingFeatures.cpp

@@ -413,8 +413,20 @@ namespace MissingFeatures {
             "MLANG",
             "MLANGSLV",
             "MONITOR",
+            "MPFANUM",
             "MSGFILE",
+            "MULSGGD",
+            "MULSGGDV",
+            "MULTOUTS",
+            "MULTREAL",
+            "MULTREGD",
+            "MULTREGH",
+            "MULTSIG",
+            "MULTSIGV",
             "MULT_XYZ",
+            "NARROW",
+            "NCONSUMP",
+            "NEFAC",
             "NETBALAN",
             "NEXTSTEP",
             "NNEWTF",