STYLE: fix file permissions, inconsistent Test files

applications/test/mapDistributePolyMesh/cavity/cavity.foam

...test/mapDistributePolyMesh/cavity/system/decomposeParDict

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/T

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/U

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/alphat

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/epsilon

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/k

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/nut

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/p

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/p_rgh

...atTransfer/overBuoyantPimpleFoam/0.orig/pointDisplacement

tutorials/heatTransfer/overBuoyantPimpleFoam/0.orig/zoneID

tutorials/heatTransfer/overBuoyantPimpleFoam/Allclean

...atTransfer/overBuoyantPimpleFoam/constant/dynamicMeshDict

tutorials/heatTransfer/overBuoyantPimpleFoam/constant/g

...r/overBuoyantPimpleFoam/constant/thermophysicalProperties

...nsfer/overBuoyantPimpleFoam/constant/turbulenceProperties

...s/heatTransfer/overBuoyantPimpleFoam/system/blockMeshDict

...als/heatTransfer/overBuoyantPimpleFoam/system/controlDict

...eatTransfer/overBuoyantPimpleFoam/system/decomposeParDict