Merge branch 'feature-single-precision' into 'develop'

...enFOAM/dimensionedTypes/dimensionedType/dimensionedType.C

...enFOAM/dimensionedTypes/dimensionedType/dimensionedType.H

...sionedFields/DimensionedField/DimensionedFieldFunctions.C

...sionedFields/DimensionedField/DimensionedFieldFunctions.H

...nFOAM/fields/FieldFields/FieldField/FieldFieldFunctions.C

...nFOAM/fields/FieldFields/FieldField/FieldFieldFunctions.H

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

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

.../GeometricFields/GeometricField/GeometricFieldFunctions.C

.../GeometricFields/GeometricField/GeometricFieldFunctions.H

...eFields/cyclicLduInterfaceField/cyclicLduInterfaceField.C

...eFields/cyclicLduInterfaceField/cyclicLduInterfaceField.H

.../lduInterfaceFields/lduInterfaceField/lduInterfaceField.C

.../lduInterfaceFields/lduInterfaceField/lduInterfaceField.H

...s/processorLduInterfaceField/processorLduInterfaceField.C

...s/processorLduInterfaceField/processorLduInterfaceField.H

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrix.C

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrix.H

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrixATmul.C

src/OpenFOAM/matrices/lduMatrix/lduMatrix/lduMatrixSolver.C