add more quantity conversions

src/main/scala/edu/ie3/util/quantities/QuantityUtils.scala

@@ -39,7 +39,9 @@ import javax.measure.quantity.{
   Energy,
   Length,
   Power,
-  Time
+  Temperature,
+  Time,
+  Volume
 }
 import scala.math.BigDecimal.RoundingMode
 import scala.math.BigDecimal.RoundingMode.RoundingMode
@@ -211,19 +213,35 @@ object QuantityUtils {
     def asMicroFarradPerKilometre: ComparableQuantity[SpecificCapacitance] =
       as(MICROFARAD_PER_KILOMETRE)
 
-    def asKiloWattHourPerKelvin: ComparableQuantity[HeatCapacity] =
-      as(KILOWATTHOUR_PER_KELVIN)
-
     def asKiloWattHourPerKelvinTimesCubicMetre
         : ComparableQuantity[SpecificHeatCapacity] =
       as(KILOWATTHOUR_PER_KELVIN_TIMES_CUBICMETRE)
 
-    /* ==== Thermal Conductance ==== */
+    /* ==== Thermal ==== */
+
+    def asDegreeKelvin: ComparableQuantity[Temperature] = as(
+      KELVIN
+    )
+
+    def asDegreeCelsius: ComparableQuantity[Temperature] = as(
+      CELSIUS
+    )
 
     def asKiloWattPerKelvin: ComparableQuantity[ThermalConductance] = as(
       KILOWATT_PER_KELVIN
     )
 
+    def asKiloWattHourPerKelvin: ComparableQuantity[HeatCapacity] =
+      as(KILOWATTHOUR_PER_KELVIN)
+
+    /* ==== Volume ==== */
+
+    def asCubicMetre: ComparableQuantity[Volume] =
+      as(CUBIC_METRE)
+
+    def asLitre: ComparableQuantity[Volume] =
+      as(LITRE)
+
     /** Create a quantity from the double with given unit
       * @param unit
       *   the unit to create the quantity with

src/test/scala/edu/ie3/util/quantities/QuantityUtilsSpec.scala

@@ -396,6 +396,42 @@ class QuantityUtilsSpec
         )
       }
 
+      "convert a double to a degree kelvin quantity" in {
+        value.asDegreeKelvin should equalWithTolerance(
+          Quantities.getQuantity(
+            value,
+            KELVIN
+          )
+        )
+      }
+
+      "convert a double to a degree celsius quantity" in {
+        value.asDegreeCelsius should equalWithTolerance(
+          Quantities.getQuantity(
+            value,
+            CELSIUS
+          )
+        )
+      }
+
+      "convert a double to a cubic metre quantity" in {
+        value.asCubicMetre should equalWithTolerance(
+          Quantities.getQuantity(
+            value,
+            CUBIC_METRE
+          )
+        )
+      }
+
+      "convert a double to a litre quantity" in {
+        value.asLitre should equalWithTolerance(
+          Quantities.getQuantity(
+            value,
+            LITRE
+          )
+        )
+      }
+
       /* ==== Thermal Conductance ==== */
 
       "convert a double to a kilowatt per kelvin quantity" in {