Fix readability-braces-around-statements.

Applications/ApplicationsLib/ProjectData.cpp

Applications/CLI/ogs.cpp

Applications/DataHolderLib/BoundaryCondition.cpp

Applications/DataHolderLib/Color.cpp

Applications/DataHolderLib/ColorLookupTable.cpp

Applications/DataHolderLib/Project.cpp

Applications/DataHolderLib/SourceTerm.cpp

Applications/FileIO/AsciiRasterInterface.cpp

Applications/FileIO/CsvInterface.cpp

Applications/FileIO/GMSInterface.cpp

Applications/FileIO/Gmsh/GMSHAdaptiveMeshDensity.cpp

Applications/FileIO/Gmsh/GMSHInterface.cpp

Applications/FileIO/Gmsh/GMSHLineLoop.cpp

Applications/FileIO/Gmsh/GMSHPolygonTree.cpp

Applications/FileIO/Gmsh/GmshReader.cpp

Applications/FileIO/Legacy/OGSIOVer4.cpp

Applications/FileIO/Legacy/createSurface.cpp

Applications/FileIO/PetrelInterface.cpp

Applications/FileIO/SHPInterface.cpp

Applications/FileIO/TetGenInterface.cpp