Change input parameter group name from SpatialParameters to SpatialParams as...

Change input parameter group name from SpatialParameters to SpatialParams as SpatialParams already exists while SpatialParameters would be lonely.

doc/doxygen/extradoc/parameterlist.txt

@@ -347,8 +347,8 @@
  * | ShallowWater             | UseMixingLengthTurbulenceModel           | bool                              | false                              | Whether the mixing-length turbulence model is used. |
  * | ShallowWater             | VerticalCoefficientOfMixingLengthModel   | Scalar                            | 1.0                                | For the turbulence model base on the mixing length: The Elder-like vertical turbulence coefficient. |
  * | \b SimpleH2O             | ReferenceTemperature                     | Scalar                            | 293.15                             | The reference temperature in \f$\mathrm{[K]}\f$ for calculating the (liquid or gas) enthalpy of simple H2O. |
- * | \b SpatialParameters     | ContactAngle                             | Scalar                            | 0.0                                | This contact angle \f$[rad]\f$ is set both as the contact angle within a pore throat and the one within a pore body. It can be overloaded for solution-dependent values. |
  * | \b SpatialParams         | ComputeAwsFromAnsAndPcMax                | bool                              | true                               | Compute volume-specific interfacial area between the wetting and solid phase from interfacial area between nonwetting and solid phase and maximum capillary pressure. |
+ * | SpatialParams            | ContactAngle                             | Scalar                            | 0.0                                | This contact angle \f$[rad]\f$ is set both as the contact angle within a pore throat and the one within a pore body. It can be overloaded for solution-dependent values. |
  * | SpatialParams            | ForchCoeff                               | Scalar                            | 0.55                               | The Forchheimer coefficient |
  * | SpatialParams            | MinBoundaryPermeability                  | Scalar                            | -                                  | The minimum permeability |
  * | SpatialParams            | Permeability                             | Scalar                            | -                                  | The permeability |

dumux/material/spatialparams/porenetwork/porenetwork2p.hh

@@ -103,7 +103,7 @@ public:
     Scalar contactAngle(const Element& element,
                         const ElementVolumeVariables& elemVolVars) const
     {
-        static const Scalar theta = getParam<Scalar>("SpatialParameters.ContactAngle", 0.0);
+        static const Scalar theta = getParam<Scalar>("SpatialParams.ContactAngle", 0.0);
         return theta;
     }
 
@@ -120,7 +120,7 @@ public:
                         const SubControlVolume& scv,
                         const ElementSolutionVector& elemSol) const
     {
-        static const Scalar theta = getParam<Scalar>("SpatialParameters.ContactAngle", 0.0);
+        static const Scalar theta = getParam<Scalar>("SpatialParams.ContactAngle", 0.0);
         return theta;
     }