Fix more unit names (#1351)

Came across some more unit names that seem wrong. Breaking changes once
more.

Related #1200

Author: Muximize

Diff for: Common/UnitDefinitions/Density.json

@@ -178,7 +178,7 @@
     },
     {
       "SingularName": "GramPerDeciliter",
-      "PluralName": "GramsPerDeciLiter",
+      "PluralName": "GramsPerDeciliter",
       "FromUnitToBaseFunc": "{x} / 1e-1",
       "FromBaseToUnitFunc": "{x} * 1e-1",
       "Prefixes": [ "Pico", "Nano", "Micro", "Milli", "Centi", "Deci" ],

Diff for: Common/UnitDefinitions/ElectricPotentialChangeRate.json

@@ -11,7 +11,7 @@
   "Units": [
     {
       "SingularName": "VoltPerSecond",
-      "PluralName": "VoltsPerSeconds",
+      "PluralName": "VoltsPerSecond",
       "BaseUnits": {
         "L": "Meter",
         "M": "Kilogram",
@@ -30,7 +30,7 @@
     },
 	{
       "SingularName": "VoltPerMicrosecond",
-      "PluralName": "VoltsPerMicroseconds",
+      "PluralName": "VoltsPerMicrosecond",
       "BaseUnits": {
         "L": "Meter",
         "M": "Kilogram",
@@ -49,7 +49,7 @@
     },
     {
       "SingularName": "VoltPerMinute",
-      "PluralName": "VoltsPerMinutes",
+      "PluralName": "VoltsPerMinute",
       "BaseUnits": {
         "L": "Meter",
         "M": "Kilogram",
@@ -68,7 +68,7 @@
     },
     {
       "SingularName": "VoltPerHour",
-      "PluralName": "VoltsPerHours",
+      "PluralName": "VoltsPerHour",
       "BaseUnits": {
         "L": "Meter",
         "M": "Kilogram",

Diff for: Common/UnitDefinitions/FuelEfficiency.json

@@ -41,7 +41,7 @@
       },
       {
         "SingularName": "KilometerPerLiter",
-        "PluralName": "KilometersPerLiters",
+        "PluralName": "KilometersPerLiter",
         "FromUnitToBaseFunc": "100 / {x}",
         "FromBaseToUnitFunc": "100 / {x}",
         "Localization": [{

Diff for: Common/UnitDefinitions/Speed.json

@@ -30,7 +30,7 @@
     },
     {
       "SingularName": "MeterPerMinute",
-      "PluralName": "MetersPerMinutes",
+      "PluralName": "MetersPerMinute",
       "BaseUnits": {
         "L": "Meter",
         "T": "Minute"