Merge branch 'issue-1615-solver-verbosity' into 'develop'

src/OpenFOAM/matrices/LduMatrix/LduMatrix/LduMatrix.H

src/OpenFOAM/matrices/LduMatrix/LduMatrix/LduMatrixSolver.C

...OpenFOAM/matrices/LduMatrix/LduMatrix/SolverPerformance.C

...OpenFOAM/matrices/LduMatrix/LduMatrix/SolverPerformance.H

src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCCCG/PBiCCCG.C

src/OpenFOAM/matrices/LduMatrix/Solvers/PBiCICG/PBiCICG.C

src/OpenFOAM/matrices/LduMatrix/Solvers/PCICG/PCICG.C

...AM/matrices/LduMatrix/Solvers/SmoothSolver/SmoothSolver.C

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

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

src/OpenFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolver.C

...penFOAM/matrices/lduMatrix/solvers/GAMG/GAMGSolverSolve.C

src/OpenFOAM/matrices/lduMatrix/solvers/PBiCG/PBiCG.C

...OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.C

src/OpenFOAM/matrices/lduMatrix/solvers/PCG/PCG.C

src/OpenFOAM/matrices/lduMatrix/solvers/PPCG/PPCG.C

...AM/matrices/lduMatrix/solvers/smoothSolver/smoothSolver.C

src/finiteVolume/fvMatrices/fvMatrix/fvMatrixSolve.C

src/finiteVolume/fvMatrices/fvScalarMatrix/fvScalarMatrix.C

src/regionFaModels/KirchhoffShell/KirchhoffShell.C