Fix integrity for class 6 power plants

modules/standard/power_plant.json

@@ -138,7 +138,7 @@
       "eff": 1,
       "grp": "pp",
       "id": "po",
-      "integrity": 90,
+      "integrity": 102,
       "mass": 40,
       "pgen": 16.8,
       "rating": "E"
@@ -151,7 +151,7 @@
       "eff": 0.75,
       "grp": "pp",
       "id": "pn",
-      "integrity": 113,
+      "integrity": 90,
       "mass": 16,
       "pgen": 18.9,
       "rating": "D"
@@ -164,7 +164,7 @@
       "eff": 0.5,
       "grp": "pp",
       "id": "pm",
-      "integrity": 136,
+      "integrity": 113,
       "mass": 20,
       "pgen": 21,
       "rating": "C"
@@ -177,7 +177,7 @@
       "eff": 0.45,
       "grp": "pp",
       "id": "pl",
-      "integrity": 124,
+      "integrity": 136,
       "mass": 32,
       "pgen": 23.1,
       "rating": "B"
@@ -190,7 +190,7 @@
       "eff": 0.4,
       "grp": "pp",
       "id": "pk",
-      "integrity": 118,
+      "integrity": 124,
       "mass": 20,
       "pgen": 25.2,
       "rating": "A"