Feature single precision solve type

applications/test/field1/Test-field1.C

src/OpenFOAM/fields/Fields/Field/FieldFunctions.C

...AM/meshes/primitiveMesh/primitiveMeshCellCentresAndVols.C

...hes/primitiveMesh/primitiveMeshCheck/primitiveMeshCheck.C

...hes/primitiveMesh/primitiveMeshCheck/primitiveMeshTools.C

...M/meshes/primitiveMesh/primitiveMeshFaceCentresAndAreas.C

src/OpenFOAM/primitives/Scalar/scalar/scalar.H

src/OpenFOAM/primitives/SphericalTensor/SphericalTensor.H

src/OpenFOAM/primitives/SymmTensor/SymmTensor.H

src/OpenFOAM/primitives/Tensor/Tensor.H

src/OpenFOAM/primitives/Vector/Vector.H

src/OpenFOAM/primitives/VectorSpace/products.H